GREASE FILTER ASSEMBLY FOR - A grease filter assembly for use in a range hood to remove airborne grease is disclosed to include an air deflector with guide rollers and grille, a roll of grease filter mounted in a filter supply chamber at the air deflector with one end of the grease filter extending out of the filter supply chamber over the grilles and the guide rollers into a waste filter collecting chamber, and a motor mounted in the air deflector and controllable to transfer the grease filter into the waste grease collecting chamber by means of a sheet-transfer cylinder and an impression cylinder.

11-26-2009

20120204855

Cooking Device with Ventilation and Filtration System - A cooking device with a ventilation and filtration system is disclosed that may be a mobile cart. The ventilation and filtration system provides removal of heated and effluent-laden air from the vicinity of the cooking device utilizing a manually telescoping vent having a handle for positioning the vent. The telescoping vent piece may be easily manually removable and reattachable for cleaning. Further, the downdraft ventilator is in communication with a filtration and effluent removal system that may have one or more filters and may also have a drip tray.

08-16-2012

20120152228

METHOD AND APPARATUS FOR THE THERMAL PROTECTION OF LED LIGHT MODULES IN A RANGE HOOD APPLIANCE - A method and apparatus for the thermal protection of LED light modules in a range hood appliance is provided. If the temperature of the LED light module reaches a predetermined temperature, one or more protective actions are taken to prevent over heating the LED light module. Such protective actions can include e.g., decreasing and/or terminating the power to the LED light module, opening a damper to provide air for cooling the LED light module, and/or activating a fan to provide forced convection cooling of the LED light module.

06-21-2012

20130087135

BUILT-IN RETRACTABLE VENTILATION HOOD ASSEMBLY - A built-in ventilation hood assembly for air exhausting is disclosed. An example built-in ventilation hood assembly may comprise a housing and a retractable hood unit configured to be slidably mounted within the housing. The retractable hood unit may comprise at least one air intake into which air is drawn. The built-in ventilation hood assembly may further comprise a driving unit configured to slide the retractable hood unit out from the housing or slide the retractable hood unit in to the housing, and a ventilation unit being installed within the housing and configured to draw air in through the at least one air intake.

04-11-2013

20120152229

Range hood capable of resisting draft - A range hood capable of resisting draft is provided above a counter on the top of which an air-generation device is located. The range hood comprises an air-extraction hood that has a bottom provided with an elongate air-extraction slot for drawing air upwards. Besides, an air blow groove is provided in front of the elongate air-extraction slot for blowing air downwards. A long left upright plate and a long right upright plate are respectively provided below the left and right lateral surfaces of the air-extraction hood. Thereby, when the elongate air-extraction slot draws in air, an oblique airflow is formed. Besides, the long left and right upright plates are able to hinder the draft coming from lateral sides, so as to protect the oblique airflow structure. Consequently, an intact upwards-flowing airflow is formed to exhaust soot and harmful gases.

Low Profile Exhaust Hood - A low profile exhaust hood has a high inlet and a high aspect ratio of horizontal to vertical. A sloping wall of the recess guides hot plumes upwardly to the inlet. The inlet is sized to provide an exhaust face velocity that is at least as high as a highest possible plume velocity for a 400 F oven. The inlet is located high and forwardly to cause a suction zone to be generated near the forward edge of the hood to aid in capturing plumes tending to escape which are remote from the sloping wall.

12-18-2008

20110315136

Extendable hood for microwave oven positioned over the range or cook top - An extendable hood and mounting bracket for mounting on the underside of a microwave oven which is positioned above a cook top, the extendable hood being frictionally engaged in the bracket and selectively removable or slidably retracted when not in use, the extendable hood extending over the front burners of the cook top and capturing and directing any fumes, smoke, or odors generated from cooking on the front burners to the fan and filter unit mounted on the underside of the microwave oven.

12-29-2011

20100206292

Extendable hood for microwave oven positioned over the range or cook top - An extendable hood and mounting bracket for mounting on the underside of a microwave oven which is positioned above a cook top, the extendable hood being frictionally engaged in the bracket and selectively removable or slidably retracted when not in use, the extendable hood extending over the front burners of the cook top and capturing and directing any fumes, smoke, or odors generated from cooking on the front burners to the fan and filter unit mounted on the underside of the microwave oven.

08-19-2010

20090107482

PROTECTIVE BARRIER SYSTEM AGAINST COOKING SPLATTER - A barrier system protecting a wall from cooking surface splatter includes a panel having an exterior surface and a rear surface spatially offset from the wall. The panel also has a bottom edge and an opposing upper edge. The panel is secured to the wall with multiple securements such that the lower edge of the panel is positioned between 0.635 and 1.27 centimeters above the cooking surface. The securements include a pedestal that defines the offset between the wall and the rear surface of the panel and a fastener in simultaneous contact with the panel by way of an aperture in the panel, the pedestal, and the wall. A panel formed of tempered glass is amenable to inclusion of an ultraviolet illumination light source that facilitates degradation of splatter on the panel.

04-30-2009

20090260616

VENTILATING KITCHEN RANGE SUBFRAME - A kitchen range subframe includes air channels for passively directing air to and/or from an element enclosure within the kitchen range, and a range component shelf that is configured to mount one or more range components to the kitchen range subframe. The kitchen range subframe provides improved ventilation for the kitchen range, and mounting locations for range components such as gas lines and kitchen range controls.

10-22-2009

20100319676

EXHAUST HOOD WITH GREASE ABSORBING MATERIAL ON A ROLL - A kitchen exhaust system includes a dispenser and a receiver, with a supply spool of grease absorbent material provided in the dispenser. In a process to replace the contaminated material, portions of the web can be selectively removed from the air flow path into the receiver while drawing uncontaminated portions of the web from the dispenser to the path of air flow.

12-23-2010

20160131366

OVEN RANGE VENTILATOR WITH MICROWAVE COMPARTMENT - A ventilator hood assembly for mounting above a residential cooking range. The assembly includes a lower housing with a filter for capturing particulates entrapped in the air as it is drawn in from below the lower housing, and an upper section including a blower unit powered by a motor. The blower unit draws air in from the open bottom through the filter and expels air into an exhaust duct. An upper plenum is located below the blower unit and channels air into the blower unit. A microwave compartment is located above the lower housing and below the upper plenum. An intermediate conduit is located behind at least a back wall of the compartment and is connected to the lower housing and the upper plenum so as to provide a channel through which air from the cooktop can flow to the blower unit.

05-12-2016

20100059040

VENT SYSTEM FOR A COOKING APPLIANCE - A vent system for a cooking appliance is disclosed. The appliance has a cooktop surface supporting a plurality of surface heating units. The vent system includes a vent box mounted beneath the cooktop surface; a telescopic vent assembly telescopically mounted relative to the vent box, the telescopic vent assembly being movable between a retracted position proximate the cooktop surface and an extended position above the cooktop surface; a retention unit configured to releasably hold the telescopic vent assembly in the retracted position; and a stored energy mechanical drive unit configured to move the telescopic vent assembly in a first direction to the extended position upon release of the retention unit.

03-11-2010

20150316272

Indoor Grill - An indoor grill includes a system for retaining a desired amount of heat and smoke during cooking, while passing excess smoke through a filtering system. A water tray is disposed below the heating element, thereby resisting a tendency for dripping grease to create excessive smoke. A hood includes interior and exterior portions, with a space defined therebetween, and the space being accessible along the bottom edge of the hood. A filtration system is connected to the space between the interior and exterior housing portions. Smoke is drawn into the space between the inner and outer hood from the bottom edge, permitting some smoke to remain within the hood for flavoring. When the hood is opened, the hood's edge is raised, raising the entrance to the space between the inner and outer portions up towards the smoke that remained within the hood, and drawing that smoke into the filtration system.

11-05-2015

20110056478

Hood Device for Grill - A hood device for grill comprises a hood, a telescoping tubing, a filter assembly, a grease cup, and an external fan. The hood partially covers a grill at a first elevated vertical position and collects smokes from the grill. The telescoping tubing extends from the hood and is configured for ventilating, and telescoping between the first and second positions. The filter assembly is disposed at a lower end of the telescoping tubing, and comprises filter with concentric and cylindrical layers. The grease cup is for collecting grease from the filter. The fan is for building up an ascending air current inside the telescoping tubing. A velocity of the ascending air current is determined according to the first elevated vertical position, a ratio of a diameter of the hood to a diameter of the grill, and a surface temperature of the grill.

03-10-2011

20100051010

Recirculating, self-contained ventilation system - A system includes an intake, an exhaust, and an adjustable directing member. The intake is for taking in air, the exhaust is for exhausting air, and the adjustable directing member is positioned for directing exhaust air toward the intake. Another aspect is a system that includes a source of polluted air and an air cleaning system. The air cleaning system includes an intake, an exhaust, and a directing member. The intake is for taking in polluted air and the exhaust is for exhausting air. The directing member is for directing air from the exhaust toward the intake to provide an air screen for keeping the polluted air in the vicinity of the intake.

03-04-2010

20100242945

INTEGRATED STOVE IN WHICH OIL SMOKE IS DISCHARGED DOWNWARD - An integrated stove in which oil smoke is discharged downward comprises a cabinet body; a plurality of cylindrical sunken stove holes are installed on the panel of the body; a cooker is installed on the soleplate of the stove holes; major arc shaped air suction ports are installed at the upper part of the wall of the stove holes; a handle hole is installed in one side of the stove holes facing person; a soleplate parallel to the panel basically is installed; the soleplate has a structure in the shape of pan bottom; and the part of the soleplate close to the side wall of the body extends to the combined part of the panel and the soleplate. The panel is mounted at the top of the side wall. The stove holes are embedded in the double-layer structure formed by the panel and the soleplate. The side wall of the stove holes is both connected with the panel and the soleplate in sealing way, the panel, the soleplate and the side wall of the stove holes are enclosed to form a communicated sealed gas collecting chamber. The air port of a blower is installed at the open hole of the soleplate, and an exhaust pipe is connected with the blower.

09-30-2010

20100043772

EXTRACTOR HOOD - An extractor hood including a housing, a vapor shield pivotably mounted on the housing, and at least one pivot bearing connecting the vapor shield to the housing. The at least one pivot bearing has a bearing axis in a vicinity of a center of gravity of the vapor shield.

02-25-2010

20150323197

AUTONOMOUS VENTILATION SYSTEM - An autonomous ventilation system includes a variable-speed exhaust fan, a controller, an exhaust hood, and a spillage sensor. The exhaust fan removes air contaminants from an area. The controller is coupled to the exhaust fan and adjusts the speed of the exhaust fan. The exhaust hood is coupled to the exhaust fan and directs air contaminants to the exhaust fan. The spillage sensor is coupled to the controller, detects changes in an environmental parameter in a spillage zone adjacent to the exhaust hood, and communicates information relating to detected changes in the environmental parameter to the controller. The controller adjusts the speed of the exhaust fan in response to information relating to detected changes in the environmental parameter.

11-12-2015

20140041649

DOWNDRAFT SYSTEM - Some embodiments of the invention provide a downdraft assembly capable of ventilating a cooktop including housing with a frame, a fluid box, and a movement assembly with a belt-lift. In some embodiments, the movement assembly can include a vertically moveable chimney. Some embodiments include a chimney with a horizontal member coupled to a first vertical region and a second vertical region and including a fluid inlet. In some embodiments, a first control panel can be coupled to the housing to activate at least one function of the downdraft assembly while remaining substantially stationary as the chimney moves. Some embodiments include a second control panel coupled chimney. Some embodiments include a visor and at least one illumination source configured and arranged to at least partially illuminate the cooktop. In some embodiments, the visor can articulate to control illumination or the flow of a cooking effluent into a fluid inlet.

Downdraft That is Telescoping - A telescoping downdraft ventilator with a movable fan and efficient way of removing gases and fumes is disclosed. The telescoping downdraft ventilator has the ability to fit behind a cook top unit beneath a countertop when the cook top unit is located against a wall. The telescoping downdraft ventilator has a fan that may be attached in front of the unit or behind the unit. The ventilator collects and draws in exhaust fumes and smoke, filters it, and re-circulates or expels it through a movable exhaust duct.

12-05-2013

20140182575

AUTONOMOUS VENTILATION SYSTEM - An autonomous ventilation system includes a variable-speed exhaust fan, a controller, an exhaust hood, and a spillage sensor. The exhaust fan removes air contaminants from an area. The controller is coupled to the exhaust fan and adjusts the speed of the exhaust fan. The exhaust hood is coupled to the exhaust fan and directs air contaminants to the exhaust fan. The spillage sensor is coupled to the controller, detects changes in an environmental parameter in a spillage zone adjacent to the exhaust hood, and communicates information relating to detected changes in the environmental parameter to the controller. The controller adjusts the speed of the exhaust fan in response to information relating to detected changes in the environmental parameter.

07-03-2014

20100000512

Pollutant Removing Device and Dual-Air Curtain Range Hood Using the Device - A pollutant removing device includes first and second air blow devices respectively located at front and rear ends of a pollutant generation source or an oven and respectively including a first elongate air blow slot and a second elongate air blow slot so as to blow air upward. A suction device is located above a counter top to which the pollutant generation source or the oven is installed. The suction device includes at least one elongate suction opening which is connected with a suction machine. The at least one elongate suction opening is parallel to the first and the second elongate air blow slots. Two air curtains are formed between the at least one elongate suction opening and the first and second elongate air blow slots. The gas, vapor, or particulate type pollutants located between the two air curtains is sucked via the at least one elongate suction opening.

01-07-2010

20160091211

INDUCTION VENTILATION SYSTEM FOR AIR SUPPLY AND EXHAUST - Disclosed is an induction ventilation system for air supply and exhaust, including: an upper plate that has an induction heating portion thereon and a lift hole in a rear portion thereof; a vertically movable unit that moves up and down through the lift hole and is equipped with a filter; an air suction and discharge unit including a chamber with an oil drain hole, a flexible duct connected between the vertically movable unit and the chamber, an air suction fan, and a discharge pipe through which indoor air drawn by the air suction fan is discharged outside; a grease tray installed under the chamber to collect grease that is condensed on the surface of an air suction passage; and an air supply hood that guides the indoor air to the air suction passage by supplying air to the upper plate using an air supply fan.

03-31-2016

20140174429

EXHAUST HOOD AND METHOD FOR CONTROLLING THE OPERATION OF AN EXHAUST HOOD - An exhaust hood has a fan apparatus for drawing away discharge air from a cooking appliance, which is arranged beneath the exhaust hood and which has at least one cooking area. A temperature detection device detects a temperature of at least one cooking area of the cooking appliance and a cooking vapor detection device detects cooking vapors in the discharge air which is drawn away by suction by the fan apparatus. A control device of the exhaust hood switches on the fan apparatus depending on a temperature which is detected by the temperature detection device and controls a suction-removal power of the fan apparatus depending on cooking vapors which are detected by the cooking vapor detection device.

06-26-2014

20140290641

RECIRCULATING DOWNDRAFT SYSTEM FOR A COOKING APPLIANCE - Provided is a cooking appliance that includes an oven cavity and an oven door pivotally mounted to a front surface and configured to selectively provide access to an interior of the oven cavity. A cooktop includes a heating element and an inlet of a downdraft system exposed at a top surface of the cooking appliance. An outlet is provided through which air drawn into the downdraft system through the inlet is exhausted to an ambient environment of a room in which the cooking appliance is located. An air duct system conveys air between the inlet and the outlet, and a blower draws air from the ambient environment of the cooking appliance adjacent to the cooktop into the inlet and through the air duct system to be expelled through the outlet back into the ambient environment.

10-02-2014

20150330641

DOWNDRAFT VENTILATION SYSTEM - A downdraft ventilation system can comprise: a movable chimney; an actuator configured to couple to and move the movable chimney; and a safety mechanism. The safety mechanism can include: a fixed bracket configured to engage the movable chimney member; a floating bracket configured to be positioned within and releasably engaged to the fixed bracket, the floating bracket configured to couple to the actuator; an energy storage member having a first end and a second end, the first end configured to engage the fixed bracket and the second end configured to engage the floating bracket; and at least one limit switch configured to engage the fixed bracket and the floating bracket, the at least one limit switch configured to remove power to the actuator when an obstruction of the movable chimney causes the floating bracket and the fixed bracket to disengage.

11-19-2015

20100294259

CONTROL OF EXHAUST SYSTEMS - Exhaust capture and containment are enhanced by means of automatic or manual side skirts, a sensitive breach detector based on interference effects, a combination of vertical and horizontal edge jets, and/or corner jets that are directed to the center diagonally from corners. Associated control functions are described.

11-25-2010

20130340742

Cook Top with a Ventilation System and a Blower Mount Therefor - A cook top having a cooking surface includes a number of heating elements. The cook top includes a number of controls for controlling operation of the heating elements and other components of the cook top. A vent is integrally provided with the cook top and in fluid communication with a ventilation system configured to draw air through the vent. The ventilation system includes a plenum defining a cavity, which may include a filter for removing particulate matter from the exhausted air. A blower assembly is coupled to the plenum for drawing the an from the cooking surface through the vent and the plenum. The blower assembly and the plenum are coupled to one another by a coupling element that is configured to enable an operator or installer of the cook top to selectively direct the exhaust of the blower assembly in a plurality of predetermined directions.

HOOD DEVICES, METHODS, AND SYSTEMS WITH FEATURES TO ENHANCE CAPTURE AND CONTAINMENT - A device that augments the capture and containment of an exhaust hood using jets is retrofitable to existing exhaust hoods. The device, in embodiments, forms a self-contained system that is separate from the hood and can be installed in existing hoods providing them with increased performance. Various embodiments are shown which are suitable for canopy and backshelf hood designs.

EXTRACTOR HOOD - An extractor hood includes a housing with a fan disposed therein and an extraction opening for the entry of fumes into the extractor hood on the bottom of the extractor hood. The extractor hood has an air outlet gap on the top of the extractor hood in the edge region of the extractor hood. The air outlet gap is adjacent to a surface that is arched in the direction of the bottom of the extractor hood.

ASSEMBLY FOR COOKING WITH A SAFETY DEVICE - An assembly for cooking has a safety device installed on an air guider. The safety device comprises a sensor detecting a wind flow from the air guider and a processing unit comparing a sensed flow value of the wind flow with a predetermined flow value and determining the flowing condition of the air guider and executing a controlling action. When oil sludge obstructs an opening of the air guider to cause the flow value of cooking fumes to be lower than the predetermined value, the processing unit stops an air pump of the air guider or activates an alarm unit to warn operators to clean the air guider, thereby maintaining an efficient inhaling effect of the air guider. The processing unit can concurrently promote a rotation speed of the air pump to keep inhaling an amount of cooking fumes for avoiding scattering the cooking fumes in dining spaces.

12-19-2013

20100095949

Pollutant removing device and oblique single air curtain range hood using the device - The present invention relates to a pollutant removing device and an oblique single air curtain range hood using the device. The rear side of the range hood is adjacent to a wall and the range hood includes an air blow device and a suction device. The air blow device has an elongate air blow slot that is provided in front of a counter top and through which air is blown upward. The suction device is located above the counter top and includes an elongate suction opening that is connected with a suction machine to produce upward suction force. The elongate suction opening is parallel to the elongate air blow slot in a way that the elongate suction opening is above and spaced from the elongate air blow slot toward the wall. By means of the operation of the suction machine, an oblique air curtain that is nearly two-dimensional is formed between the elongate suction opening and the elongate air blow slot. The gas or harmful gas located between the oblique air curtain and the wall can be sucked via the elongate suction opening. Consequently, the escape of pollutants is decreased and the ability against interference of sucking harmful gas resulted from ambient air turbulence can be enhanced.

04-22-2010

20100126494

EXHAUST HOOD WITH ADJUSTABLE SUPPLY AIR CONTAINMENT AIR STREAMS AND AIR CURTAINS - An exhaust hood and related methods for exhausting fumes are disclosed. The exhaust hood comprises a housing forming a collection region having an entry portion and an upper portion disposed above the entry portion, an exhaust inlet coupled with the housing and configured to draw air from the entry and upper portions, and a supply assembly coupled with the housing and configured to output a flow of supply air. The supply assembly is configured to direct a first portion of the supply air across the collection region generally towards the exhaust inlet and direct a second portion of the supply air generally downward away from the collection area. The directed first portion of the supply air divides the collection region into the entry and upper portions. The portion of the supply air directed into at least the first portion or the second portion can be adjustable.

05-27-2010

20100326419

RANGE HOOD - A range hood, containing at least a fan having a housing and an impeller, an oil filter, a cover, a fume exhaust cover, a light, and a switch. The housing of the fan is a circular double-chamber or multi-chamber structure with an air inlet and an air outlet, and the impeller of the fan contains at least one group of arc-shaped blades each having a closed side and being enlarged in an axial direction.

12-30-2010

20100051011

VENT HOOD FOR A COOKING APPLIANCE - A vent hood is disclosed. The vent hood includes an enclosure having an inlet and a fluid passage, a first stage fluid moving device disposed adjacent to the inlet and configured to provide a substantially uniform inflow of fluid across the inlet, and a second stage fluid moving device disposed within the enclosure and downstream of the first stage fluid moving device.

03-04-2010

20100065038

Exhaust Canopy - A stove vent and canopy positionable above a cooking surface to any of a plurality of positions between a fully retracted position and a fully extended position. In a fully retracted position, the vent is positionable immediately adjacent to the surface allowing for venting of cooking vapors without blocking the user's view over the stove. Telescoping to the fully extended to position places the vent over the cooking surface and may employ a clear backsplash to continue to maintain the user's view behind the cooking surface.

03-18-2010

20150114384

MODULAR VENT HOOD BLOWER KIT FOR IN-LINE OR EXTERNAL APPLICATION - A vent hood kit comprises a canopy assembly having an intake end and an outlet end, a blower housing selectively and alternatively coupled with the exhaust end of the canopy assembly in an in-line position and an external position, a blower assembly disposed within a blower housing and in communication with the intake end in both the in-line and external positions and an exhaust duct adapter of the blower housing is configured to be in communication with the intake end in both the in-line and external positions.

04-30-2015

20160097544

COLLECTING HOOD - A collecting hood for capturing exhaust air above cooking areas, production devices and the like is provided. The collecting hood includes a vapor chamber, an extraction chamber and an air supply chamber. The vapor chamber is downwardly open and tapers upward. The extraction chamber is separated from the vapor chamber by a filter or a separator. The filter or separator forms an inclined boundary of the upwardly tapering vapor chamber. The air supply chamber tapers downward and merges at its bottom end into a curved deflection region which opens out into a discharge opening which is arranged at a bottom end of the vapor chamber. Supply air, which is blown into the air supply chamber, emerges from the discharge opening horizontally or upwardly at an angle in the direction of the filter or separator. A negative pressure chamber is arranged between the vapor chamber and the air supply chamber.

04-07-2016

20120247451

TEPPANYAKI ASSEMBLY AVAILABLE FOR SUCKING AIR BY MULTIPLE ANGLES - A teppanyaki assembly available for sucking air by multiple angles comprises a platform including a cooking plane, and an air pump installed in the platform and including an air guider as well as an air channel. Wherein, the air guider has a housing disposed on the cooking plane and a regulator pivoted to the housing. Tuning the regulator allows an air entrance on the regulator to confront an external opening on the housing by different degrees so as to pump air with divergent angles and filter air properly. Besides, an air extracting effect could be favorably controlled in accordance with different food.

10-04-2012

20150059731

HOOD SYSTEM HAVING BUILT-IN ROTOR - The present invention relates to a hood system having a built-in rotor, capable of discharging contaminated gas generated by a source of contamination in a timely manner to prevent the contamination of indoor air in advance. The hood system having a built-in rotor comprises a housing, an exhaust fan, said rotor, and a discharge unit. The housing is arranged on top of the contamination source, and the lower side thereof has an inlet port for feeding in contaminated gas. The exhaust fan is arranged inside the housing, and rotates by means of a rotation-driving device so as to forcibly exhaust the contaminated gas. The rotor rotates together with the exhaust fan to prevent the contaminated gas from diffusing into an indoor area. The discharge unit is arranged on an upper surface of the housing so as to discharge the contaminated gas suctioned by the exhaust fan to the outside.

HOOD ENCLOSURE ASSEMBLY FOR COOK-TOP DOWNDRAFT VENTILATION - Embodiments of the present disclosure are directed towards a hood enclosure assembly for cook-top downdraft ventilation and associated systems, techniques, and configurations. In one embodiment, an apparatus includes one or more structural elements for placement on one or both of the cooking surface or a surface adjacent to the cooking surface that is substantially parallel with the cooking surface, the one or more structural elements being configured to form a cavity to house a vent of a downdraft ventilation system. Other embodiments may be described and/or claimed.

04-02-2015

20100095950

Kitchen Ventilation Hood Apparatus - The present invention provides a kitchen ventilation hood for ventilating the area above a cooking area and for exhausting air containing cooking by-products from a cooking station to an external environment through an exhaust duct while using a reduced airflow. The kitchen ventilation hood of the present invention is designed to minimize the required airflow through the hood in order to thoroughly evacuate the cooking by-products. The kitchen ventilation hood of the current invention has a structure incorporating an arched interior hood surface that directs the air to be ventilated through the air intake gap and the grease filter. The more efficient airflow resulting from the arched interior hood surface allows for removal of cooking by-products with a lower airflow than that required by currently available ventilation hoods. As such, the kitchen ventilation hood of the present invention represents a significant improvement over prior ventilation hoods.

04-22-2010

20130087134

Cookery Air Purification and Exhaust System - An air filtration and exhaust system is described. The system comprises a microcontroller, a power supply, and a series of sensors that detect the presence of airborne contaminants such as ultra fine particles, smoke, natural gas and radon gas. In the presence of these airborne contaminants, the system is designed to inactivate and prevent operation of nearby food preparation appliances. Once these contaminants have been safely removed, the operation of these appliances is restored. In addition, the ventilation system may be equipped with a purification subassembly, which safely and efficiently removes such containments from the area. The system may also comprise an alarm that is activatable in the presence of these contaminants.

04-11-2013

20150338107

SOOT-EXHAUSTING DEVICE - A soot-exhausting device is provided with a left and a right upright plate. A front end of the left upright plate is bended and extended to form a first upright plate and a left deflection plate. The upper part of the free end of the left deflection plate is bended rightwardly to form a left top plate. A front end of the right upright plate is bended and extended to form a second upright plate and a right deflection plate. The upper part of the free end of the right deflection plate is bended leftwardly to form a right top plate. The bottom of the air-extraction hood is provided with a left and a right air blow groove that are respectively in elongate shape and parallel to top side of the left and the right top plate and located at the rear end of each top side.

11-26-2015

20110056479

VARIABLE VENTILATION METHOD AND SYSTEM - A system and method for providing variable ventilation for a cooking environment. The system includes a plurality of cooking appliances, wherein each appliance has various operating parameters indicative of a cooking level of each appliance; a cooking event monitor operably connected to each of the cooking appliances and configured to: (1) determine a level of ventilation for each of the plurality of appliances based upon the cooking level of each appliance, (2) determine a control signal based upon the determined level of ventilation, and (3) transmit the control signal; a motor speed controller operably connected to the cooking event monitor and configured to receive the control signal; and at least one exhaust fan operably connected to the motor speed controller, wherein the motor speed controller adjusts a speed of the exhaust fan based upon the control signal.

03-10-2011

20130061843

RETRACTABLE VENTILATION SYSTEM - A retractable ventilation system for a household appliance includes a lifting motor for moving the ventilation system in two opposing directions, and a switch controlling movement of the lifting motor. A first actuation of the switch moves the ventilation system in a first (or preferred) of the two directions, and a second actuation of the switch moves the ventilation system in a second direction opposing the first direction. Furthermore, a household appliance includes an extractor hood, a cooking appliance or a combination thereof, and at least one of the proposed retractable ventilation systems. A method for operating the retractable ventilation system is also described.

03-14-2013

20130042853

COOKING ASSEMBLY THAT SAVES ENERGY, REDUCES NOISE, AND CIRCULARLY REMOVES FUMES - A cooking assembly that saves energy, reduces noise, and circularly removes fumes comprises a venting outlet disposed opposite to an absorbing inlet of an absorbing device. The air expelled from the venting outlet permits guiding fumes and smells generated during cooking into an absorbing scope of the absorbing inlet, thereby offering a recurring air curtain over a cooking platen. The cooking assembly keeps heating energy but takes away the cooking fumes and smells from the cooking platen via a consistent and recurring operation to clarify the air. The recurring air curtain avoids wasting air conditioning energy and prevents from leaking the air polluted by fumes out, which allows the cooking assembly to omit an extra outdoor discharging pipe but attain a fresh and tranquil dining atmosphere, and decrease the energy consumption of the facility for being friendly to the environment.

02-21-2013

20130037017

LOW PROFILE EXHAUST HOOD - A low profile exhaust hood has a high inlet and a high aspect ratio of horizontal to vertical. A sloping wall of the recess guides hot plumes upwardly to the inlet. The inlet is sized to provide an exhaust face velocity that is at least as high as a highest possible plume velocity for a 400 F oven. The inlet is located high and forwardly to cause a suction zone to be generated near the forward edge of the hood to aid in capturing plumes tending to escape which are remote from the sloping wall.

02-14-2013

20130087133

VENTILATING RANGE HOOD - A ventilating range hood having an interior transverse wall spanning between the side walls of the hood. The transverse wall separates the range hood into a rear chamber and a forward chamber. The transverse wall includes an aperture for allowing communication between the forward and rear chambers and a closure member for selectively opening and closing the aperture. A plate is removably connected to the back wall for covering the rear exhaust opening. In a recirculation only mode, the rear exhaust opening is covered by the removable plate and the closure member is opened so that air drawn into the rear chamber through the air intake flows through the aperture and out the top exhaust opening.

04-11-2013

20130255661

EXTRACTOR HOOD - An extractor hood changes an air volume of a fan in response to a temperature of a cooking subject on a cooker. The hood includes an infrared sensor that detects an average temperature between the cooking subject temperature and an ambient temperature of the cooking subject, a temperature sensor that detects an ambient temperature of the cooker, a signal receiver, and an air-volume controller. The air volume controller calculates the cooking subject temperature based on the average temperature by using the ambient temperature of the cooker as the ambient temperature of the cooking subject, and then determines the air volume of a fan based on the cooking subject temperature and a cooker signal.

10-03-2013

20140069414

RANGE HOOD OF VAPOR-CLEANING TYPE - A range hood of vapor-cleaning type has a chamber module and a vapor-cleaning module. The vapor-cleaning module has a tank, a pump, and a heater. The pump is connected with the tank and the heater. The tank is filled with water, and the water in the tank is pumped to the heater to be heated into vapor by the heater. The vapor is pumped in the chamber module to melt grease adhering in the chamber module. A temperature of the vapor is high, such that grease adhering in the chamber module is melted easily.

03-13-2014

20130008429

Replaceable Capture Hoods for Recirculating, self-contained ventilation system - A system includes a plurality of capture hoods and a hood supporting unit. Each of the plurality of capture hoods has a hood portion and a connection portion. The connection portion is for connection to the hood supporting unit. The hood supporting unit is capable of connecting to just one of the plurality of capture hoods at a time. The hood portions of the plurality of capture hoods have different shapes. The connection portions of the plurality of capture hoods are identical so any one of the plurality of capture hoods can connect to the hood supporting unit.

01-10-2013

20130291855

COMMERCIAL KITCHEN EXHAUST SYSTEM - An exhaust system includes a hood structure having one or more of (i) an exhaust flow infeed surface extending downward from a lower end of the filter unit that helps to feed the thermal plume toward the filter unit, (ii) a bypass flow transition surface extending upward from the upper end of the filter unit and then forward to aid bypass flow in circulating back toward the filter aperture and (iii) a front wall structure that includes a downwardly extending wall portion with a chamfered and/or curved transition portion at its lower end and a rearwardly extending wall portion.

11-07-2013

20130220299

AIRFLOW GUIDING MEMBER AND AIR DUCT WITH AIRFLOW GUIDING MEMBER - The air duct comprises a body and at least an airflow guiding member. The airflow guiding member is detachably configured in a slot outlet of the body. The airflow guiding member comprises a guiding ditch with a receiving section, a regulating section, and a guiding section. An airflow flowing in the body is received by the receiving section into the regulating section and then thrusts out of the body after sequentially compressed by the regulating and guiding sections. An air wall is as such formed above the body to confine the pollutants dispersed in the air.

08-29-2013

20110114076

COMMERCIAL KITCHEN EXHAUST SYSTEM - An exhaust system includes a hood structure having one or more of (i) an exhaust flow infeed surface extending downward from a lower end of the filter unit that helps to feed the thermal plume toward the filter unit, (ii) a bypass flow transition surface extending upward from the upper end of the filter unit and then forward to aid bypass flow in circulating back toward the filter aperture and (iii) a front wall structure that includes a downwardly extending wall portion with a chamfered and/or curved transition portion at its lower end and a rearwardly extending wall portion.

05-19-2011

20140020673

FOOD SERVICE UNIT INCLUDING RECIRCULATING VENTILATION SYSTEM AND FIRE SUPPRESSION SYSTEM - A food service unit for use with a cooking unit includes a food shield including an upper wall, a customer-side wall, and two lateral sidewalls, a ventilation volume defined at least in part by the food shield, a recirculating ventilation system including a filter, a fan downstream of the filter, and an exhaust vent, wherein the fan is configured to draw air from the ventilation volume through the filter and exhaust the air through the exhaust vent, a pressure sensor configured to detect a differential pressure between atmosphere and a location between the filter and the fan, a control system configured to prevent a cooking unit from operating when the detected differential pressure is outside a specified range of pressures, a fire suppression system including a nozzle and a source of fire extinguishing agent and a fire detection sensor configured to detect a fire and activate the fire suppression system.

01-23-2014

20120055460

Internally Adjustable Damper - An internally adjustable damper for use in a commercial kitchen includes a housing having a sidewall defining an interior, a first open end, and a second open end in fluid communication with the first open end. A damper blade is disposed within the housing and is rotatable about an axis of rotation to allow a selectable air flow resistance. An arch extends from the damper blade and adjacent to the sidewall, the arch being symmetric about the axis of rotation. A threaded stud extends from the sidewall into the interior of the housing and is disposed adjacent the arch. A fastener is operatively coupled to the threaded stud, wherein the fastener is adapted to selectively press down against the arch, thereby fixing the location of the damper blade, and retract from the arch, thereby allowing the damper blade to rotate about the axis of rotation. The fastener and the baffle are accessible from inside the housing through either the first open end or the second open end.

03-08-2012

20140083412

BUILT-IN RETRACTABLE VENTILATION HOOD ASSEMBLY - A built-in ventilation hood assembly is designed for installation into a kitchen cabinet immediately above a built-in cooking device. The assembly includes a housing and a retractable hood unit, which may include at least one air intake into which air is drawn; and the housing may include at least one opening for exhaustion of the air taken into the housing. The assembly may also include at least one telescoping linear actuator configured to slide the retractable hood unit out from the housing and back into the housing when needed. The assembly may also include an air blower installed within a rear end of the housing. The air blower includes one, two, or more cross flow fans for uniform exhausting the air out of the housing. The housing may also include an external rectangular duct.

EXHAUST HOOD METHODS, DEVICES, AND SYSTEMS - Exhaust hood methods, devices, and systems are disclosed herein that improve the performance of short-circuit hoods. Such improvements can be provided relatively inexpensively by utilizing existing features of the structure of short-circuit hoods. The resulting enhancement in performance may exceed that of a regular exhaust hood while avoiding the pitfalls associated with make-up air injection into the exhaust hood recess. The components of the short-circuit system that inject make-up and/or conditioned air into the exhaust hood recess can be converted into a combination of horizontal and vertical jets at a lower edge of the exhaust hood. A retrofit jet generator can be installed into the short-circuit system outlets. A series of openings in the jet generator can generate the combination of horizontal and vertical jets at a lower edge of the exhaust hood when air from the make-up air or conditioned air source is supplied thereto.

Kitchen Furniture - The invention relates to a piece of kitchen furniture having a useful surface area and at least one functional element arranged above the useful surface area. The functional element is arranged on a support member, wherein the support member comprises a pole attached to the piece of kitchen furniture and an arm adjoining the pole. The invention further relates to a piece of kitchen furniture having a useful surface area and at least one functional element arranged above the useful surface area, wherein the functional element is arranged on a support member, wherein the support member has a stem arranged on the piece of furniture within the useful surface area, the upper end of which extends above the useful surface area.

02-25-2016

20130233295

RANGE HOOD APPLIANCE WITH COMBINATION RECIRCULATION AND EXTERIOR VENTING OPTIONS - A range hood is provided that allows the user to select between venting to the exterior of a kitchen space versus recirculating air that is drawn over e.g., a cook top. Features are provided whereby the user can readily switch between such options for gas flow. A filter can also be provided whereby the user can readily select between different filter media depending upon the mode of gas flow selected.

09-12-2013

20130133639

GREASE FILTER - A grease filter capable of reducing a pressure loss generated while air passes through the grease filter, and cooking apparatus are provided. The grease filter includes an inflow portion configured for oil particles to be introduced therethrough, and a channel provided to discharge air current and oil particles, which are introduced through the inflow portion, to an outside, wherein the channel includes an upper channel disposed in parallel while spaced apart in a predetermined distance to form the inflow portion, and a lower channel comprising a direction changing portion provided to change a direction of the air current and the oil particles introduced through the inflow portion, and a guide portion having a predetermined angle to guide the oil particles and the air current having been changed in direction by the direction changing portion.

05-30-2013

20160054006

CONTROL OF EXHAUST SYSTEMS - Exhaust capture and containment are enhanced by means of automatic or manual side skirts, a sensitive breach detector based on interference effects, a combination of vertical and horizontal edge jets, and/or corner jets that are directed to the center diagonally from corners. Associated control functions are described.

02-25-2016

20120125316

VENTILATION SYSTEM FOR A RANGE HOOD WITH EXHAUST AND RECIRCULATION OPTIONS - A ventilation system for a range hood of a kitchen area is provided. More particularly, a kitchen ventilation system is provided that has both exhaust and recirculation options that are provided by internally contained features for directing the flow of air. The system can be installed as a modular unit as part of a new or existing range hood.

05-24-2012

20130167826

BLOWER FOR DOWNDRAFT COOKING APPLICATIONS AND ASSOCIATED METHOD OF USE - A blower for a downdraft cooktop that includes a blower housing, having a top portion and a bottom portion, which includes an inlet that can be fluidly coupled to a downdraft cooktop and an outlet for removing air from the blower housing, a fan located between the input and the outlet of the blower housing, a motor having a rotor with a shaft, having a top portion and a bottom portion, and a stator, wherein the bottom portion of the rotor is operatively attached to the fan, a rotatable member operative attached to the top portion of the rotor, and a motor housing enclosing the motor, having a top portion, a bottom portion, at least one inlet opening and at least one outlet opening, wherein air for cooling the motor is drawn through the motor housing without utilizing the air located within the blower housing.

07-04-2013

20140034040

DOWNDRAFT SYSTEM - Some embodiments of the invention provide a downdraft assembly capable of ventilating a cooktop including housing with a frame, a fluid box, and a movement assembly with a belt-lift. In some embodiments, the movement assembly can include a vertically moveable chimney. Some embodiments include a chimney with an upper and lower horizontal member and dual fluid inlets. In some embodiments, a first control panel can be coupled to the housing to activate at least one function of the downdraft assembly while remaining substantially stationary as the chimney moves. Some embodiments include a second control panel coupled chimney. Some embodiments include a visor and at least one illumination source configured and arranged to at least partially illuminate the cooktop. In some embodiments, the visor can articulate to control illumination or the flow of a cooking effluent into at least one of the dual inlets.

02-06-2014

20120152226

HEAT SINK FOR A COOKING APPLIANCE - A heat sink for LEDs or other electronic elements in a kitchen appliance is provided. The chassis or other heat conducting components of the appliance are used as a heat sink to conduct away heat. The LEDs or other electronic features may be connected directly to the heat sink or may be connected by e.g., a bracket.

AIR-CIRCULATING MODULE AND FUME EXTRACTION DEVICE - An air-circulator includes an housing with an air inlet, an air outlet opening, an odor filter, and an insertion opening for inserting the odor filter. The odor filter is assigned to the air outlet opening.

01-21-2010

20140331988

Range Hood System and Method for Moving Air - A method of moving air comprises providing a recreational vehicle having a range for cooking, and providing a range hood and attaching the range hood to the recreational vehicle above the range, the range hood comprising a body, an outlet for exhausting air, a motor capable of a plurality of speeds, a fan connected to the motor, and a fan switch connected to the motor to control a speed of the motor.

11-13-2014

20150101588

GREASE FILTER, MANUFACTURING METHOD THEREOF AND COOKING DEVICE HAVING THE SAME - A grease filter, which includes a first channel having an inlet portion through which oil particles flow in, and a first guide unit configured to guide the oil particles flowing in through the inlet portion, and a second channel having an outlet portion through which the oil particles and air current flowing in through the inlet portion is discharged into the outside, and at least one second guide unit configured to guide the oil particles and air current to be discharged through the outlet portion. Here, the first channel and the second channel are detachably provided. The grease filter can be easily repaired and maintained, and collection efficiency can be improved due to such a configuration.

DAMPER SUITABLE FOR LIQUID AEROSOL-LADEN FLOW STREAMS - A flow control device has a duct section with a plurality of damper blocking elements, each having a major plane. The damper blocking elements are pivotably connected to the duct section and movable in a range that is limited to ensure that, when the duct section is mounted in a preferred orientation, the damper blocking element major planes always form an angle of at least 45 degrees from the horizontal throughout the range. The range is such that the plurality of damper blocking elements can selectively close and open the duct. The blocking elements can completely close the duct, for example, to block natural convection.

10-22-2015

20150316273

APPARATUS FOR CHANNELLING COOKING FUMES - An apparatus for channelling cooking fumes arising from cooking taking place on a stovetop in a designated area, the apparatus comprising a suction duct having at least one inlet configured for intake of air containing the cooking fumes, the suction duct configured to channel the air containing the cooking fumes away from the designated area; and a supply duct having at least one outlet configured for outflow of air over at least a portion of the stovetop such that the cooking fumes are at least partially directed by the air towards the at least one inlet of the suction duct; the apparatus being hoodless.

11-05-2015

20140150771

COOKTOP VENTILATION AND COOLING SYSTEM - A domestic cooking appliance is provided. The appliance includes an oven having an oven exhaust duct located above the oven, and an exhaust fan for moving cooling air though the oven exhaust duct and out of an exhaust opening located at an upper rear location of the oven; and a cooktop located above the oven, the cooktop having a main unit configured to be positioned above the oven and having a container support for supporting cooking containers to be heated by the cooktop; and a ventilation system for routing cooling air through the main unit, the ventilation system having a cooling air inlet located at a bottom front of the main unit and above the oven, and a cooktop duct that channels the cooling air from the cooling air inlet to the container support or channels the cooling air from the container support to the oven air exhaust duct.

06-05-2014

20140116414

CUSTOM RANGE HOOD SYSTEM AND METHOD - Embodiments of the invention provide a range hood system including a housing, a ventilation system including an inlet and a fan, an illumination source, and a user interface coupled with a control system. In some embodiments, a fan speed can be varied, and in some further embodiments, the range hood system can include a filter change indicator and fan delay-off feature. In some other embodiments, the illumination intensity can be varied to provide variable illumination intensity to the range top surface. Some embodiments can include a clock, a timer coupled to an audible alarm, and a fan delay-off time coupled to a user interface. In some other embodiments, a heat sensor can be coupled to a component of a range hood system, and a heat sentry mode can display a status on a user interface, and can operate a fan if the temperature exceeds a preset limit.

05-01-2014

20140034039

AIR EXCHANGE SYSTEM WITH MULTIPLE AIR BLOWERS OR FANS TO PRODUCE A CYCLONE-LIKE AIR FLOW - An air exchange system places the air pumps or fans outside of the main air outflow pathway through a device, such as a range hood. By using this configuration, the system is made safe, easy to maintain with less noise and may even increase the efficiency of the air pump by not subjecting it to debris, particles or turbulence in the air flow, also flexible to add more pumps with significant increase the size of the air exchange system. Air pumps can be operably connected to push air into two or more air reservoirs. Each air reservoir has a narrow air outlet slit along with a Coanda design. When air comes out of the narrow air outlet, it has high speed and generates a negative pressure due to the Bernoulli effect. Such negative pressure will bring more air around into the air flow system, thus causing a desired air exchange.

02-06-2014

20160069580

VENTILATION SYSTEM FOR A ROOM - The present invention relates to a ventilation system for a room which comprises a hood for domestic use located in said room, a wall fan located in said room, a plurality of transducers configured to detect a respective plurality of characteristic parameters of the gases in said room; processing and control means in signal communication with said plurality of transducers and in signal communication with said first control means, processing and control means electrically connected with said plurality of transducers and in signal communication with said first control means, said processing and control means comprising firmware configured to process said detected characteristic parameters and to transmit a first control signal to control said hood for domestic use. The characterizing feature is that said hood for domestic use is in signal communication with said wall fan via a first transmitter module, located in said hood, and configured to transmit a second signal, said wall fan comprising a first receiver module configured to receive said second signal; said second radio frequency signal being generated by said hood according to said first signal to instruct said second control means to turn on said wall fan and keep it in this state for a first predetermined ON-time when one or more of said characteristic parameters detected by said plurality of sensors exceed respective predetermined threshold values.

CONTROL OF EXHAUST SYSTEMS - Exhaust capture and containment are enhanced by means of automatic or manual side skirts, a sensitive breach detector based on interference effects, a combination of vertical and horizontal edge jets, and/or corner jets that are directed to the center diagonally from corners. Associated control functions are described.

Air Collecting Device And Exhaust Air Box, In Particular Usable In Said Device - The invention relates to an air holding device comprising a channel system raised from a suction opening disposed at a height of a workstation generating dirty air or vapours and leading to at least one outlet opening. An exhausting fan is placed between a prefilter and at least one odour filter. The channel system is embodied in the form of an exhaust air box disposed downstream of the exhaust fan. The lateral surface of the exhaust air box comprises an air inlet which is connected to the downstream side of the exhausting fan. The other lateral surfaces are selectively provided with air outlet openings covered respectively with an odour filter having an adjustable air resistance. Said odour filter preferably consists of a foam material coated with active carbon and the air resistance thereof is selectable according the thickness and/or porosity of the foam material.

08-28-2008

20090211564

Smoke Exhaust With An Air Curtain Fan - A smoke exhaust has a casing, a suction fan and an air curtain fan. The casing has an air chamber, an air duct and a smoke collecting eaves. The air chamber has a lower inlet and an upper inlet. The smoke collecting eaves is mounted on the casing. The suction fan is mounted in the casing. The air curtain fan is mounted on the eaves and is capable generating a downward air curtain. The air curtain prevents the smoke from spreading out of the smoke exhaust.

08-27-2009

20090199844

EXHAUST HOOD WITH AIR CURTAIN - An exhaust hood captures and contains a thermal plume with a minimum of exhaust air by defining a short-throw planar jet around a protected perimeter. Corner interference is mitigated by various mechanisms including having at least one of adjacent planar jets run only partly along a respective edge such that said first and second curtain jets do not meet at said corner; having a direction of the planar jets proximate corners where they meet being intermediate between respective directions of the jets along respective main portions of the perimeter; or having a direction of the jets of one of the adjacent edges be horizontal while the other is vertical.

08-13-2009

20080202492

SMOKELESS COOKER - A smokeless cooker includes a table located indoors, with a cabinet, which may include a plurality of individual boxes stacked and assembled together, below the table. A gas-discharge flow path leads from the cabinet to the outdoors. The cabinet includes an inner box with an open upper portion in an upper opening section of an outer box. An installed cooking means is located inside the inner box. A suction flow path is formed outside the inner box, with a suction hole in the inner wall of the suction flow path above a heating surface of the installed cooking means. The gas-discharge flow path includes a fat/oil filtering section, an absorption deodorizing section, a HEPA filter and a fan. A duct leading to the outdoors is present at the downstream side of the HEPA filter.

08-28-2008

20100275900

Exhaust air mist separator - A grease containment apparatus to remove grease and other contaminants from hot air exiting a kitchen area through a vent system which includes a vertical separator.

11-04-2010

20100258109

RETROFIT APPARATUS FOR A COOKING DEVICE - A retrofit apparatus for a preexisting cooking device comprises a hood that defines a liquid removal section, a motor disposed within the hood, and a motor gear rotatable by the motor to facilitate rotating a centrifugal liquid removal device. The motor gear may comprise a plurality of teeth configured to engage a motor gear coupling on a shaft of the centrifugal liquid removal device, and the motor gear may be configured to automatically engage the motor gear coupling to facilitate rotating the centrifugal liquid removal device. In other embodiments, a lifting mechanism in the preexisting cooking device is configured to move the centrifugal liquid removal device from a cooking section to the liquid removal section.

10-14-2010

20140311476

RANGE EXHAUST CLEANING SYSTEM AND METHOD - A cleaning system for a cooking range exhaust having a range hood, a backsplash, and an exhaust flue for exhausting cooking effluent is disclosed. The cleaning system can include a fluid delivery system constructed for partial placement within the cooking range exhaust. The fluid delivery system can include a hood spray conduit constructed for placement within the hood and comprising spray openings for directing a degreasing composition to the backsplash. The fluid delivery system can also include a flue spray conduit constructed for placement within or outside the exhaust flue and comprising at least one spray opening for directing the degreasing composition to an interior surface of the flue. The cleaning system can include a pump system constructed for conveying the degreasing composition from a degreasing composition source and through the fluid delivery system. A method of cleaning a cooking range exhaust and a self-cleaning exhaust system are also disclosed.

10-23-2014

20090272372

Kitchen Hood Assembly with a Combination Cleaning and Fire Suppression System - A kitchen hood assembly includes a combination hood cleaning and fire suppression system. The hood assembly includes a hood structure and a riser connected thereto. An exhaust blower forces an exhaust stream of air into the hood and through the riser. A combination hood cleaning and fire suppression system is incorporated into the hood structure. The combination hood cleaning and fire suppression system includes an elongated spray bar that is connected to a water source and includes a surfactant injector that injects a surfactant into the water being directed to the spray bar. In one mode of operation, the spray bar is effective to clean the hood assembly. In another mode of operation, when a fire is sensed in or in the vicinity of the hood, the same spray bar is utilized to inject an aqueous liquid into the hood to suppress the fire.

11-05-2009

20130074823

RANGE EXHAUST CLEANING SYSTEM AND METHOD - A cleaning system for a cooking range exhaust having a range hood, a backsplash, and an exhaust flue for exhausting cooking effluent is disclosed. The cleaning system can include a fluid delivery system constructed for partial placement within the cooking range exhaust. The fluid delivery system can include a hood spray conduit constructed for placement within the hood and comprising spray openings for directing a degreasing composition to the backsplash. The fluid delivery system can also include a flue spray conduit constructed for placement within or outside the exhaust flue and comprising at least one spray opening for directing the degreasing composition to an interior surface of the flue. The cleaning system can include a pump system constructed for conveying the degreasing composition from a degreasing composition source and through the fluid delivery system. A method of cleaning a cooking range exhaust and a self-cleaning exhaust system are also disclosed.

03-28-2013

20090013989

LINEAL SLOT VENTILATOR WITH INTERNAL CLEANING SYSTEM AND ADJUSTABLE BAFFLE - In an exemplary embodiment, this system is found within a kitchen hood, such as those found in restaurants, used to remove excess cooking heat and grease. Building fire safety and sanitation codes mandate routine hood maintenance to maintain fire safety, operator comfort and workplace sanitation. Conventional maintenance can be very messy, time consuming and quite expensive. In an exemplary embodiment, the hood is fabricated to incorporate an integral heat exchanger which further creates a trough housing a grease extraction device. The exchanger and trough are located in such a manner that collected heat and/or grease may be removed from the exhaust air stream and further fabricated to permit automatic and/or semi automatic cleaning of both devices and trough. This invention improves fire safety and sanitation, saves time and reduces maintenance costs. Cleaning is achieved using less energy and keeps the heat exchanger at peak efficiency to further enhance energy savings.

01-15-2009

20090194093

BAFFLE-TYPE GREASE FILTERS FOR KITCHEN VENTILATORS - A grease filter has upper and lower baffle assemblies that define tortuous paths for exhaust air flowing therethrough. The baffles in the upper assembly include a perforated metal strips and bent free edges to maximize grease extraction from the exhaust air. A hinge connects the upper and lower baffle assemblies and permits the assemblies to pivot from a closed position to an open position. In the open position, access is provided to all surfaces of the assemblies so that they can be efficiently cleaned.

GREASE FILTER ASSEMBLY FOR - A grease filter assembly for use in a range hood to remove airborne grease is disclosed to include an air deflector with guide rollers and grille, a roll of grease filter mounted in a filter supply chamber at the air deflector with one end of the grease filter extending out of the filter supply chamber over the grilles and the guide rollers into a waste filter collecting chamber, and a motor mounted in the air deflector and controllable to transfer the grease filter into the waste grease collecting chamber by means of a sheet-transfer cylinder and an impression cylinder.

11-26-2009

20120204855

Cooking Device with Ventilation and Filtration System - A cooking device with a ventilation and filtration system is disclosed that may be a mobile cart. The ventilation and filtration system provides removal of heated and effluent-laden air from the vicinity of the cooking device utilizing a manually telescoping vent having a handle for positioning the vent. The telescoping vent piece may be easily manually removable and reattachable for cleaning. Further, the downdraft ventilator is in communication with a filtration and effluent removal system that may have one or more filters and may also have a drip tray.

08-16-2012

20120152228

METHOD AND APPARATUS FOR THE THERMAL PROTECTION OF LED LIGHT MODULES IN A RANGE HOOD APPLIANCE - A method and apparatus for the thermal protection of LED light modules in a range hood appliance is provided. If the temperature of the LED light module reaches a predetermined temperature, one or more protective actions are taken to prevent over heating the LED light module. Such protective actions can include e.g., decreasing and/or terminating the power to the LED light module, opening a damper to provide air for cooling the LED light module, and/or activating a fan to provide forced convection cooling of the LED light module.

06-21-2012

20130087135

BUILT-IN RETRACTABLE VENTILATION HOOD ASSEMBLY - A built-in ventilation hood assembly for air exhausting is disclosed. An example built-in ventilation hood assembly may comprise a housing and a retractable hood unit configured to be slidably mounted within the housing. The retractable hood unit may comprise at least one air intake into which air is drawn. The built-in ventilation hood assembly may further comprise a driving unit configured to slide the retractable hood unit out from the housing or slide the retractable hood unit in to the housing, and a ventilation unit being installed within the housing and configured to draw air in through the at least one air intake.

04-11-2013

20120152229

Range hood capable of resisting draft - A range hood capable of resisting draft is provided above a counter on the top of which an air-generation device is located. The range hood comprises an air-extraction hood that has a bottom provided with an elongate air-extraction slot for drawing air upwards. Besides, an air blow groove is provided in front of the elongate air-extraction slot for blowing air downwards. A long left upright plate and a long right upright plate are respectively provided below the left and right lateral surfaces of the air-extraction hood. Thereby, when the elongate air-extraction slot draws in air, an oblique airflow is formed. Besides, the long left and right upright plates are able to hinder the draft coming from lateral sides, so as to protect the oblique airflow structure. Consequently, an intact upwards-flowing airflow is formed to exhaust soot and harmful gases.

Low Profile Exhaust Hood - A low profile exhaust hood has a high inlet and a high aspect ratio of horizontal to vertical. A sloping wall of the recess guides hot plumes upwardly to the inlet. The inlet is sized to provide an exhaust face velocity that is at least as high as a highest possible plume velocity for a 400 F oven. The inlet is located high and forwardly to cause a suction zone to be generated near the forward edge of the hood to aid in capturing plumes tending to escape which are remote from the sloping wall.

12-18-2008

20110315136

Extendable hood for microwave oven positioned over the range or cook top - An extendable hood and mounting bracket for mounting on the underside of a microwave oven which is positioned above a cook top, the extendable hood being frictionally engaged in the bracket and selectively removable or slidably retracted when not in use, the extendable hood extending over the front burners of the cook top and capturing and directing any fumes, smoke, or odors generated from cooking on the front burners to the fan and filter unit mounted on the underside of the microwave oven.

12-29-2011

20100206292

Extendable hood for microwave oven positioned over the range or cook top - An extendable hood and mounting bracket for mounting on the underside of a microwave oven which is positioned above a cook top, the extendable hood being frictionally engaged in the bracket and selectively removable or slidably retracted when not in use, the extendable hood extending over the front burners of the cook top and capturing and directing any fumes, smoke, or odors generated from cooking on the front burners to the fan and filter unit mounted on the underside of the microwave oven.

08-19-2010

20090107482

PROTECTIVE BARRIER SYSTEM AGAINST COOKING SPLATTER - A barrier system protecting a wall from cooking surface splatter includes a panel having an exterior surface and a rear surface spatially offset from the wall. The panel also has a bottom edge and an opposing upper edge. The panel is secured to the wall with multiple securements such that the lower edge of the panel is positioned between 0.635 and 1.27 centimeters above the cooking surface. The securements include a pedestal that defines the offset between the wall and the rear surface of the panel and a fastener in simultaneous contact with the panel by way of an aperture in the panel, the pedestal, and the wall. A panel formed of tempered glass is amenable to inclusion of an ultraviolet illumination light source that facilitates degradation of splatter on the panel.

04-30-2009

20090260616

VENTILATING KITCHEN RANGE SUBFRAME - A kitchen range subframe includes air channels for passively directing air to and/or from an element enclosure within the kitchen range, and a range component shelf that is configured to mount one or more range components to the kitchen range subframe. The kitchen range subframe provides improved ventilation for the kitchen range, and mounting locations for range components such as gas lines and kitchen range controls.

10-22-2009

20100319676

EXHAUST HOOD WITH GREASE ABSORBING MATERIAL ON A ROLL - A kitchen exhaust system includes a dispenser and a receiver, with a supply spool of grease absorbent material provided in the dispenser. In a process to replace the contaminated material, portions of the web can be selectively removed from the air flow path into the receiver while drawing uncontaminated portions of the web from the dispenser to the path of air flow.

12-23-2010

20160131366

OVEN RANGE VENTILATOR WITH MICROWAVE COMPARTMENT - A ventilator hood assembly for mounting above a residential cooking range. The assembly includes a lower housing with a filter for capturing particulates entrapped in the air as it is drawn in from below the lower housing, and an upper section including a blower unit powered by a motor. The blower unit draws air in from the open bottom through the filter and expels air into an exhaust duct. An upper plenum is located below the blower unit and channels air into the blower unit. A microwave compartment is located above the lower housing and below the upper plenum. An intermediate conduit is located behind at least a back wall of the compartment and is connected to the lower housing and the upper plenum so as to provide a channel through which air from the cooktop can flow to the blower unit.

05-12-2016

20100059040

VENT SYSTEM FOR A COOKING APPLIANCE - A vent system for a cooking appliance is disclosed. The appliance has a cooktop surface supporting a plurality of surface heating units. The vent system includes a vent box mounted beneath the cooktop surface; a telescopic vent assembly telescopically mounted relative to the vent box, the telescopic vent assembly being movable between a retracted position proximate the cooktop surface and an extended position above the cooktop surface; a retention unit configured to releasably hold the telescopic vent assembly in the retracted position; and a stored energy mechanical drive unit configured to move the telescopic vent assembly in a first direction to the extended position upon release of the retention unit.

03-11-2010

20150316272

Indoor Grill - An indoor grill includes a system for retaining a desired amount of heat and smoke during cooking, while passing excess smoke through a filtering system. A water tray is disposed below the heating element, thereby resisting a tendency for dripping grease to create excessive smoke. A hood includes interior and exterior portions, with a space defined therebetween, and the space being accessible along the bottom edge of the hood. A filtration system is connected to the space between the interior and exterior housing portions. Smoke is drawn into the space between the inner and outer hood from the bottom edge, permitting some smoke to remain within the hood for flavoring. When the hood is opened, the hood's edge is raised, raising the entrance to the space between the inner and outer portions up towards the smoke that remained within the hood, and drawing that smoke into the filtration system.

11-05-2015

20110056478

Hood Device for Grill - A hood device for grill comprises a hood, a telescoping tubing, a filter assembly, a grease cup, and an external fan. The hood partially covers a grill at a first elevated vertical position and collects smokes from the grill. The telescoping tubing extends from the hood and is configured for ventilating, and telescoping between the first and second positions. The filter assembly is disposed at a lower end of the telescoping tubing, and comprises filter with concentric and cylindrical layers. The grease cup is for collecting grease from the filter. The fan is for building up an ascending air current inside the telescoping tubing. A velocity of the ascending air current is determined according to the first elevated vertical position, a ratio of a diameter of the hood to a diameter of the grill, and a surface temperature of the grill.

03-10-2011

20100051010

Recirculating, self-contained ventilation system - A system includes an intake, an exhaust, and an adjustable directing member. The intake is for taking in air, the exhaust is for exhausting air, and the adjustable directing member is positioned for directing exhaust air toward the intake. Another aspect is a system that includes a source of polluted air and an air cleaning system. The air cleaning system includes an intake, an exhaust, and a directing member. The intake is for taking in polluted air and the exhaust is for exhausting air. The directing member is for directing air from the exhaust toward the intake to provide an air screen for keeping the polluted air in the vicinity of the intake.

03-04-2010

20100242945

INTEGRATED STOVE IN WHICH OIL SMOKE IS DISCHARGED DOWNWARD - An integrated stove in which oil smoke is discharged downward comprises a cabinet body; a plurality of cylindrical sunken stove holes are installed on the panel of the body; a cooker is installed on the soleplate of the stove holes; major arc shaped air suction ports are installed at the upper part of the wall of the stove holes; a handle hole is installed in one side of the stove holes facing person; a soleplate parallel to the panel basically is installed; the soleplate has a structure in the shape of pan bottom; and the part of the soleplate close to the side wall of the body extends to the combined part of the panel and the soleplate. The panel is mounted at the top of the side wall. The stove holes are embedded in the double-layer structure formed by the panel and the soleplate. The side wall of the stove holes is both connected with the panel and the soleplate in sealing way, the panel, the soleplate and the side wall of the stove holes are enclosed to form a communicated sealed gas collecting chamber. The air port of a blower is installed at the open hole of the soleplate, and an exhaust pipe is connected with the blower.

09-30-2010

20100043772

EXTRACTOR HOOD - An extractor hood including a housing, a vapor shield pivotably mounted on the housing, and at least one pivot bearing connecting the vapor shield to the housing. The at least one pivot bearing has a bearing axis in a vicinity of a center of gravity of the vapor shield.

02-25-2010

20150323197

AUTONOMOUS VENTILATION SYSTEM - An autonomous ventilation system includes a variable-speed exhaust fan, a controller, an exhaust hood, and a spillage sensor. The exhaust fan removes air contaminants from an area. The controller is coupled to the exhaust fan and adjusts the speed of the exhaust fan. The exhaust hood is coupled to the exhaust fan and directs air contaminants to the exhaust fan. The spillage sensor is coupled to the controller, detects changes in an environmental parameter in a spillage zone adjacent to the exhaust hood, and communicates information relating to detected changes in the environmental parameter to the controller. The controller adjusts the speed of the exhaust fan in response to information relating to detected changes in the environmental parameter.

11-12-2015

20140041649

DOWNDRAFT SYSTEM - Some embodiments of the invention provide a downdraft assembly capable of ventilating a cooktop including housing with a frame, a fluid box, and a movement assembly with a belt-lift. In some embodiments, the movement assembly can include a vertically moveable chimney. Some embodiments include a chimney with a horizontal member coupled to a first vertical region and a second vertical region and including a fluid inlet. In some embodiments, a first control panel can be coupled to the housing to activate at least one function of the downdraft assembly while remaining substantially stationary as the chimney moves. Some embodiments include a second control panel coupled chimney. Some embodiments include a visor and at least one illumination source configured and arranged to at least partially illuminate the cooktop. In some embodiments, the visor can articulate to control illumination or the flow of a cooking effluent into a fluid inlet.

Downdraft That is Telescoping - A telescoping downdraft ventilator with a movable fan and efficient way of removing gases and fumes is disclosed. The telescoping downdraft ventilator has the ability to fit behind a cook top unit beneath a countertop when the cook top unit is located against a wall. The telescoping downdraft ventilator has a fan that may be attached in front of the unit or behind the unit. The ventilator collects and draws in exhaust fumes and smoke, filters it, and re-circulates or expels it through a movable exhaust duct.

12-05-2013

20140182575

AUTONOMOUS VENTILATION SYSTEM - An autonomous ventilation system includes a variable-speed exhaust fan, a controller, an exhaust hood, and a spillage sensor. The exhaust fan removes air contaminants from an area. The controller is coupled to the exhaust fan and adjusts the speed of the exhaust fan. The exhaust hood is coupled to the exhaust fan and directs air contaminants to the exhaust fan. The spillage sensor is coupled to the controller, detects changes in an environmental parameter in a spillage zone adjacent to the exhaust hood, and communicates information relating to detected changes in the environmental parameter to the controller. The controller adjusts the speed of the exhaust fan in response to information relating to detected changes in the environmental parameter.

07-03-2014

20100000512

Pollutant Removing Device and Dual-Air Curtain Range Hood Using the Device - A pollutant removing device includes first and second air blow devices respectively located at front and rear ends of a pollutant generation source or an oven and respectively including a first elongate air blow slot and a second elongate air blow slot so as to blow air upward. A suction device is located above a counter top to which the pollutant generation source or the oven is installed. The suction device includes at least one elongate suction opening which is connected with a suction machine. The at least one elongate suction opening is parallel to the first and the second elongate air blow slots. Two air curtains are formed between the at least one elongate suction opening and the first and second elongate air blow slots. The gas, vapor, or particulate type pollutants located between the two air curtains is sucked via the at least one elongate suction opening.

01-07-2010

20160091211

INDUCTION VENTILATION SYSTEM FOR AIR SUPPLY AND EXHAUST - Disclosed is an induction ventilation system for air supply and exhaust, including: an upper plate that has an induction heating portion thereon and a lift hole in a rear portion thereof; a vertically movable unit that moves up and down through the lift hole and is equipped with a filter; an air suction and discharge unit including a chamber with an oil drain hole, a flexible duct connected between the vertically movable unit and the chamber, an air suction fan, and a discharge pipe through which indoor air drawn by the air suction fan is discharged outside; a grease tray installed under the chamber to collect grease that is condensed on the surface of an air suction passage; and an air supply hood that guides the indoor air to the air suction passage by supplying air to the upper plate using an air supply fan.

03-31-2016

20140174429

EXHAUST HOOD AND METHOD FOR CONTROLLING THE OPERATION OF AN EXHAUST HOOD - An exhaust hood has a fan apparatus for drawing away discharge air from a cooking appliance, which is arranged beneath the exhaust hood and which has at least one cooking area. A temperature detection device detects a temperature of at least one cooking area of the cooking appliance and a cooking vapor detection device detects cooking vapors in the discharge air which is drawn away by suction by the fan apparatus. A control device of the exhaust hood switches on the fan apparatus depending on a temperature which is detected by the temperature detection device and controls a suction-removal power of the fan apparatus depending on cooking vapors which are detected by the cooking vapor detection device.

06-26-2014

20140290641

RECIRCULATING DOWNDRAFT SYSTEM FOR A COOKING APPLIANCE - Provided is a cooking appliance that includes an oven cavity and an oven door pivotally mounted to a front surface and configured to selectively provide access to an interior of the oven cavity. A cooktop includes a heating element and an inlet of a downdraft system exposed at a top surface of the cooking appliance. An outlet is provided through which air drawn into the downdraft system through the inlet is exhausted to an ambient environment of a room in which the cooking appliance is located. An air duct system conveys air between the inlet and the outlet, and a blower draws air from the ambient environment of the cooking appliance adjacent to the cooktop into the inlet and through the air duct system to be expelled through the outlet back into the ambient environment.

10-02-2014

20150330641

DOWNDRAFT VENTILATION SYSTEM - A downdraft ventilation system can comprise: a movable chimney; an actuator configured to couple to and move the movable chimney; and a safety mechanism. The safety mechanism can include: a fixed bracket configured to engage the movable chimney member; a floating bracket configured to be positioned within and releasably engaged to the fixed bracket, the floating bracket configured to couple to the actuator; an energy storage member having a first end and a second end, the first end configured to engage the fixed bracket and the second end configured to engage the floating bracket; and at least one limit switch configured to engage the fixed bracket and the floating bracket, the at least one limit switch configured to remove power to the actuator when an obstruction of the movable chimney causes the floating bracket and the fixed bracket to disengage.

11-19-2015

20100294259

CONTROL OF EXHAUST SYSTEMS - Exhaust capture and containment are enhanced by means of automatic or manual side skirts, a sensitive breach detector based on interference effects, a combination of vertical and horizontal edge jets, and/or corner jets that are directed to the center diagonally from corners. Associated control functions are described.

11-25-2010

20130340742

Cook Top with a Ventilation System and a Blower Mount Therefor - A cook top having a cooking surface includes a number of heating elements. The cook top includes a number of controls for controlling operation of the heating elements and other components of the cook top. A vent is integrally provided with the cook top and in fluid communication with a ventilation system configured to draw air through the vent. The ventilation system includes a plenum defining a cavity, which may include a filter for removing particulate matter from the exhausted air. A blower assembly is coupled to the plenum for drawing the an from the cooking surface through the vent and the plenum. The blower assembly and the plenum are coupled to one another by a coupling element that is configured to enable an operator or installer of the cook top to selectively direct the exhaust of the blower assembly in a plurality of predetermined directions.

HOOD DEVICES, METHODS, AND SYSTEMS WITH FEATURES TO ENHANCE CAPTURE AND CONTAINMENT - A device that augments the capture and containment of an exhaust hood using jets is retrofitable to existing exhaust hoods. The device, in embodiments, forms a self-contained system that is separate from the hood and can be installed in existing hoods providing them with increased performance. Various embodiments are shown which are suitable for canopy and backshelf hood designs.

EXTRACTOR HOOD - An extractor hood includes a housing with a fan disposed therein and an extraction opening for the entry of fumes into the extractor hood on the bottom of the extractor hood. The extractor hood has an air outlet gap on the top of the extractor hood in the edge region of the extractor hood. The air outlet gap is adjacent to a surface that is arched in the direction of the bottom of the extractor hood.

ASSEMBLY FOR COOKING WITH A SAFETY DEVICE - An assembly for cooking has a safety device installed on an air guider. The safety device comprises a sensor detecting a wind flow from the air guider and a processing unit comparing a sensed flow value of the wind flow with a predetermined flow value and determining the flowing condition of the air guider and executing a controlling action. When oil sludge obstructs an opening of the air guider to cause the flow value of cooking fumes to be lower than the predetermined value, the processing unit stops an air pump of the air guider or activates an alarm unit to warn operators to clean the air guider, thereby maintaining an efficient inhaling effect of the air guider. The processing unit can concurrently promote a rotation speed of the air pump to keep inhaling an amount of cooking fumes for avoiding scattering the cooking fumes in dining spaces.

12-19-2013

20100095949

Pollutant removing device and oblique single air curtain range hood using the device - The present invention relates to a pollutant removing device and an oblique single air curtain range hood using the device. The rear side of the range hood is adjacent to a wall and the range hood includes an air blow device and a suction device. The air blow device has an elongate air blow slot that is provided in front of a counter top and through which air is blown upward. The suction device is located above the counter top and includes an elongate suction opening that is connected with a suction machine to produce upward suction force. The elongate suction opening is parallel to the elongate air blow slot in a way that the elongate suction opening is above and spaced from the elongate air blow slot toward the wall. By means of the operation of the suction machine, an oblique air curtain that is nearly two-dimensional is formed between the elongate suction opening and the elongate air blow slot. The gas or harmful gas located between the oblique air curtain and the wall can be sucked via the elongate suction opening. Consequently, the escape of pollutants is decreased and the ability against interference of sucking harmful gas resulted from ambient air turbulence can be enhanced.

04-22-2010

20100126494

EXHAUST HOOD WITH ADJUSTABLE SUPPLY AIR CONTAINMENT AIR STREAMS AND AIR CURTAINS - An exhaust hood and related methods for exhausting fumes are disclosed. The exhaust hood comprises a housing forming a collection region having an entry portion and an upper portion disposed above the entry portion, an exhaust inlet coupled with the housing and configured to draw air from the entry and upper portions, and a supply assembly coupled with the housing and configured to output a flow of supply air. The supply assembly is configured to direct a first portion of the supply air across the collection region generally towards the exhaust inlet and direct a second portion of the supply air generally downward away from the collection area. The directed first portion of the supply air divides the collection region into the entry and upper portions. The portion of the supply air directed into at least the first portion or the second portion can be adjustable.

05-27-2010

20100326419

RANGE HOOD - A range hood, containing at least a fan having a housing and an impeller, an oil filter, a cover, a fume exhaust cover, a light, and a switch. The housing of the fan is a circular double-chamber or multi-chamber structure with an air inlet and an air outlet, and the impeller of the fan contains at least one group of arc-shaped blades each having a closed side and being enlarged in an axial direction.

12-30-2010

20100051011

VENT HOOD FOR A COOKING APPLIANCE - A vent hood is disclosed. The vent hood includes an enclosure having an inlet and a fluid passage, a first stage fluid moving device disposed adjacent to the inlet and configured to provide a substantially uniform inflow of fluid across the inlet, and a second stage fluid moving device disposed within the enclosure and downstream of the first stage fluid moving device.

03-04-2010

20100065038

Exhaust Canopy - A stove vent and canopy positionable above a cooking surface to any of a plurality of positions between a fully retracted position and a fully extended position. In a fully retracted position, the vent is positionable immediately adjacent to the surface allowing for venting of cooking vapors without blocking the user's view over the stove. Telescoping to the fully extended to position places the vent over the cooking surface and may employ a clear backsplash to continue to maintain the user's view behind the cooking surface.

03-18-2010

20150114384

MODULAR VENT HOOD BLOWER KIT FOR IN-LINE OR EXTERNAL APPLICATION - A vent hood kit comprises a canopy assembly having an intake end and an outlet end, a blower housing selectively and alternatively coupled with the exhaust end of the canopy assembly in an in-line position and an external position, a blower assembly disposed within a blower housing and in communication with the intake end in both the in-line and external positions and an exhaust duct adapter of the blower housing is configured to be in communication with the intake end in both the in-line and external positions.

04-30-2015

20160097544

COLLECTING HOOD - A collecting hood for capturing exhaust air above cooking areas, production devices and the like is provided. The collecting hood includes a vapor chamber, an extraction chamber and an air supply chamber. The vapor chamber is downwardly open and tapers upward. The extraction chamber is separated from the vapor chamber by a filter or a separator. The filter or separator forms an inclined boundary of the upwardly tapering vapor chamber. The air supply chamber tapers downward and merges at its bottom end into a curved deflection region which opens out into a discharge opening which is arranged at a bottom end of the vapor chamber. Supply air, which is blown into the air supply chamber, emerges from the discharge opening horizontally or upwardly at an angle in the direction of the filter or separator. A negative pressure chamber is arranged between the vapor chamber and the air supply chamber.

04-07-2016

20120247451

TEPPANYAKI ASSEMBLY AVAILABLE FOR SUCKING AIR BY MULTIPLE ANGLES - A teppanyaki assembly available for sucking air by multiple angles comprises a platform including a cooking plane, and an air pump installed in the platform and including an air guider as well as an air channel. Wherein, the air guider has a housing disposed on the cooking plane and a regulator pivoted to the housing. Tuning the regulator allows an air entrance on the regulator to confront an external opening on the housing by different degrees so as to pump air with divergent angles and filter air properly. Besides, an air extracting effect could be favorably controlled in accordance with different food.

10-04-2012

20150059731

HOOD SYSTEM HAVING BUILT-IN ROTOR - The present invention relates to a hood system having a built-in rotor, capable of discharging contaminated gas generated by a source of contamination in a timely manner to prevent the contamination of indoor air in advance. The hood system having a built-in rotor comprises a housing, an exhaust fan, said rotor, and a discharge unit. The housing is arranged on top of the contamination source, and the lower side thereof has an inlet port for feeding in contaminated gas. The exhaust fan is arranged inside the housing, and rotates by means of a rotation-driving device so as to forcibly exhaust the contaminated gas. The rotor rotates together with the exhaust fan to prevent the contaminated gas from diffusing into an indoor area. The discharge unit is arranged on an upper surface of the housing so as to discharge the contaminated gas suctioned by the exhaust fan to the outside.

HOOD ENCLOSURE ASSEMBLY FOR COOK-TOP DOWNDRAFT VENTILATION - Embodiments of the present disclosure are directed towards a hood enclosure assembly for cook-top downdraft ventilation and associated systems, techniques, and configurations. In one embodiment, an apparatus includes one or more structural elements for placement on one or both of the cooking surface or a surface adjacent to the cooking surface that is substantially parallel with the cooking surface, the one or more structural elements being configured to form a cavity to house a vent of a downdraft ventilation system. Other embodiments may be described and/or claimed.

04-02-2015

20100095950

Kitchen Ventilation Hood Apparatus - The present invention provides a kitchen ventilation hood for ventilating the area above a cooking area and for exhausting air containing cooking by-products from a cooking station to an external environment through an exhaust duct while using a reduced airflow. The kitchen ventilation hood of the present invention is designed to minimize the required airflow through the hood in order to thoroughly evacuate the cooking by-products. The kitchen ventilation hood of the current invention has a structure incorporating an arched interior hood surface that directs the air to be ventilated through the air intake gap and the grease filter. The more efficient airflow resulting from the arched interior hood surface allows for removal of cooking by-products with a lower airflow than that required by currently available ventilation hoods. As such, the kitchen ventilation hood of the present invention represents a significant improvement over prior ventilation hoods.

04-22-2010

20130087134

Cookery Air Purification and Exhaust System - An air filtration and exhaust system is described. The system comprises a microcontroller, a power supply, and a series of sensors that detect the presence of airborne contaminants such as ultra fine particles, smoke, natural gas and radon gas. In the presence of these airborne contaminants, the system is designed to inactivate and prevent operation of nearby food preparation appliances. Once these contaminants have been safely removed, the operation of these appliances is restored. In addition, the ventilation system may be equipped with a purification subassembly, which safely and efficiently removes such containments from the area. The system may also comprise an alarm that is activatable in the presence of these contaminants.

04-11-2013

20150338107

SOOT-EXHAUSTING DEVICE - A soot-exhausting device is provided with a left and a right upright plate. A front end of the left upright plate is bended and extended to form a first upright plate and a left deflection plate. The upper part of the free end of the left deflection plate is bended rightwardly to form a left top plate. A front end of the right upright plate is bended and extended to form a second upright plate and a right deflection plate. The upper part of the free end of the right deflection plate is bended leftwardly to form a right top plate. The bottom of the air-extraction hood is provided with a left and a right air blow groove that are respectively in elongate shape and parallel to top side of the left and the right top plate and located at the rear end of each top side.

11-26-2015

20110056479

VARIABLE VENTILATION METHOD AND SYSTEM - A system and method for providing variable ventilation for a cooking environment. The system includes a plurality of cooking appliances, wherein each appliance has various operating parameters indicative of a cooking level of each appliance; a cooking event monitor operably connected to each of the cooking appliances and configured to: (1) determine a level of ventilation for each of the plurality of appliances based upon the cooking level of each appliance, (2) determine a control signal based upon the determined level of ventilation, and (3) transmit the control signal; a motor speed controller operably connected to the cooking event monitor and configured to receive the control signal; and at least one exhaust fan operably connected to the motor speed controller, wherein the motor speed controller adjusts a speed of the exhaust fan based upon the control signal.

03-10-2011

20130061843

RETRACTABLE VENTILATION SYSTEM - A retractable ventilation system for a household appliance includes a lifting motor for moving the ventilation system in two opposing directions, and a switch controlling movement of the lifting motor. A first actuation of the switch moves the ventilation system in a first (or preferred) of the two directions, and a second actuation of the switch moves the ventilation system in a second direction opposing the first direction. Furthermore, a household appliance includes an extractor hood, a cooking appliance or a combination thereof, and at least one of the proposed retractable ventilation systems. A method for operating the retractable ventilation system is also described.

03-14-2013

20130042853

COOKING ASSEMBLY THAT SAVES ENERGY, REDUCES NOISE, AND CIRCULARLY REMOVES FUMES - A cooking assembly that saves energy, reduces noise, and circularly removes fumes comprises a venting outlet disposed opposite to an absorbing inlet of an absorbing device. The air expelled from the venting outlet permits guiding fumes and smells generated during cooking into an absorbing scope of the absorbing inlet, thereby offering a recurring air curtain over a cooking platen. The cooking assembly keeps heating energy but takes away the cooking fumes and smells from the cooking platen via a consistent and recurring operation to clarify the air. The recurring air curtain avoids wasting air conditioning energy and prevents from leaking the air polluted by fumes out, which allows the cooking assembly to omit an extra outdoor discharging pipe but attain a fresh and tranquil dining atmosphere, and decrease the energy consumption of the facility for being friendly to the environment.

02-21-2013

20130037017

LOW PROFILE EXHAUST HOOD - A low profile exhaust hood has a high inlet and a high aspect ratio of horizontal to vertical. A sloping wall of the recess guides hot plumes upwardly to the inlet. The inlet is sized to provide an exhaust face velocity that is at least as high as a highest possible plume velocity for a 400 F oven. The inlet is located high and forwardly to cause a suction zone to be generated near the forward edge of the hood to aid in capturing plumes tending to escape which are remote from the sloping wall.

02-14-2013

20130087133

VENTILATING RANGE HOOD - A ventilating range hood having an interior transverse wall spanning between the side walls of the hood. The transverse wall separates the range hood into a rear chamber and a forward chamber. The transverse wall includes an aperture for allowing communication between the forward and rear chambers and a closure member for selectively opening and closing the aperture. A plate is removably connected to the back wall for covering the rear exhaust opening. In a recirculation only mode, the rear exhaust opening is covered by the removable plate and the closure member is opened so that air drawn into the rear chamber through the air intake flows through the aperture and out the top exhaust opening.

04-11-2013

20130255661

EXTRACTOR HOOD - An extractor hood changes an air volume of a fan in response to a temperature of a cooking subject on a cooker. The hood includes an infrared sensor that detects an average temperature between the cooking subject temperature and an ambient temperature of the cooking subject, a temperature sensor that detects an ambient temperature of the cooker, a signal receiver, and an air-volume controller. The air volume controller calculates the cooking subject temperature based on the average temperature by using the ambient temperature of the cooker as the ambient temperature of the cooking subject, and then determines the air volume of a fan based on the cooking subject temperature and a cooker signal.

10-03-2013

20140069414

RANGE HOOD OF VAPOR-CLEANING TYPE - A range hood of vapor-cleaning type has a chamber module and a vapor-cleaning module. The vapor-cleaning module has a tank, a pump, and a heater. The pump is connected with the tank and the heater. The tank is filled with water, and the water in the tank is pumped to the heater to be heated into vapor by the heater. The vapor is pumped in the chamber module to melt grease adhering in the chamber module. A temperature of the vapor is high, such that grease adhering in the chamber module is melted easily.

03-13-2014

20130008429

Replaceable Capture Hoods for Recirculating, self-contained ventilation system - A system includes a plurality of capture hoods and a hood supporting unit. Each of the plurality of capture hoods has a hood portion and a connection portion. The connection portion is for connection to the hood supporting unit. The hood supporting unit is capable of connecting to just one of the plurality of capture hoods at a time. The hood portions of the plurality of capture hoods have different shapes. The connection portions of the plurality of capture hoods are identical so any one of the plurality of capture hoods can connect to the hood supporting unit.

01-10-2013

20130291855

COMMERCIAL KITCHEN EXHAUST SYSTEM - An exhaust system includes a hood structure having one or more of (i) an exhaust flow infeed surface extending downward from a lower end of the filter unit that helps to feed the thermal plume toward the filter unit, (ii) a bypass flow transition surface extending upward from the upper end of the filter unit and then forward to aid bypass flow in circulating back toward the filter aperture and (iii) a front wall structure that includes a downwardly extending wall portion with a chamfered and/or curved transition portion at its lower end and a rearwardly extending wall portion.

11-07-2013

20130220299

AIRFLOW GUIDING MEMBER AND AIR DUCT WITH AIRFLOW GUIDING MEMBER - The air duct comprises a body and at least an airflow guiding member. The airflow guiding member is detachably configured in a slot outlet of the body. The airflow guiding member comprises a guiding ditch with a receiving section, a regulating section, and a guiding section. An airflow flowing in the body is received by the receiving section into the regulating section and then thrusts out of the body after sequentially compressed by the regulating and guiding sections. An air wall is as such formed above the body to confine the pollutants dispersed in the air.

08-29-2013

20110114076

COMMERCIAL KITCHEN EXHAUST SYSTEM - An exhaust system includes a hood structure having one or more of (i) an exhaust flow infeed surface extending downward from a lower end of the filter unit that helps to feed the thermal plume toward the filter unit, (ii) a bypass flow transition surface extending upward from the upper end of the filter unit and then forward to aid bypass flow in circulating back toward the filter aperture and (iii) a front wall structure that includes a downwardly extending wall portion with a chamfered and/or curved transition portion at its lower end and a rearwardly extending wall portion.

05-19-2011

20140020673

FOOD SERVICE UNIT INCLUDING RECIRCULATING VENTILATION SYSTEM AND FIRE SUPPRESSION SYSTEM - A food service unit for use with a cooking unit includes a food shield including an upper wall, a customer-side wall, and two lateral sidewalls, a ventilation volume defined at least in part by the food shield, a recirculating ventilation system including a filter, a fan downstream of the filter, and an exhaust vent, wherein the fan is configured to draw air from the ventilation volume through the filter and exhaust the air through the exhaust vent, a pressure sensor configured to detect a differential pressure between atmosphere and a location between the filter and the fan, a control system configured to prevent a cooking unit from operating when the detected differential pressure is outside a specified range of pressures, a fire suppression system including a nozzle and a source of fire extinguishing agent and a fire detection sensor configured to detect a fire and activate the fire suppression system.

01-23-2014

20120055460

Internally Adjustable Damper - An internally adjustable damper for use in a commercial kitchen includes a housing having a sidewall defining an interior, a first open end, and a second open end in fluid communication with the first open end. A damper blade is disposed within the housing and is rotatable about an axis of rotation to allow a selectable air flow resistance. An arch extends from the damper blade and adjacent to the sidewall, the arch being symmetric about the axis of rotation. A threaded stud extends from the sidewall into the interior of the housing and is disposed adjacent the arch. A fastener is operatively coupled to the threaded stud, wherein the fastener is adapted to selectively press down against the arch, thereby fixing the location of the damper blade, and retract from the arch, thereby allowing the damper blade to rotate about the axis of rotation. The fastener and the baffle are accessible from inside the housing through either the first open end or the second open end.

03-08-2012

20140083412

BUILT-IN RETRACTABLE VENTILATION HOOD ASSEMBLY - A built-in ventilation hood assembly is designed for installation into a kitchen cabinet immediately above a built-in cooking device. The assembly includes a housing and a retractable hood unit, which may include at least one air intake into which air is drawn; and the housing may include at least one opening for exhaustion of the air taken into the housing. The assembly may also include at least one telescoping linear actuator configured to slide the retractable hood unit out from the housing and back into the housing when needed. The assembly may also include an air blower installed within a rear end of the housing. The air blower includes one, two, or more cross flow fans for uniform exhausting the air out of the housing. The housing may also include an external rectangular duct.

EXHAUST HOOD METHODS, DEVICES, AND SYSTEMS - Exhaust hood methods, devices, and systems are disclosed herein that improve the performance of short-circuit hoods. Such improvements can be provided relatively inexpensively by utilizing existing features of the structure of short-circuit hoods. The resulting enhancement in performance may exceed that of a regular exhaust hood while avoiding the pitfalls associated with make-up air injection into the exhaust hood recess. The components of the short-circuit system that inject make-up and/or conditioned air into the exhaust hood recess can be converted into a combination of horizontal and vertical jets at a lower edge of the exhaust hood. A retrofit jet generator can be installed into the short-circuit system outlets. A series of openings in the jet generator can generate the combination of horizontal and vertical jets at a lower edge of the exhaust hood when air from the make-up air or conditioned air source is supplied thereto.

Kitchen Furniture - The invention relates to a piece of kitchen furniture having a useful surface area and at least one functional element arranged above the useful surface area. The functional element is arranged on a support member, wherein the support member comprises a pole attached to the piece of kitchen furniture and an arm adjoining the pole. The invention further relates to a piece of kitchen furniture having a useful surface area and at least one functional element arranged above the useful surface area, wherein the functional element is arranged on a support member, wherein the support member has a stem arranged on the piece of furniture within the useful surface area, the upper end of which extends above the useful surface area.

02-25-2016

20130233295

RANGE HOOD APPLIANCE WITH COMBINATION RECIRCULATION AND EXTERIOR VENTING OPTIONS - A range hood is provided that allows the user to select between venting to the exterior of a kitchen space versus recirculating air that is drawn over e.g., a cook top. Features are provided whereby the user can readily switch between such options for gas flow. A filter can also be provided whereby the user can readily select between different filter media depending upon the mode of gas flow selected.

09-12-2013

20130133639

GREASE FILTER - A grease filter capable of reducing a pressure loss generated while air passes through the grease filter, and cooking apparatus are provided. The grease filter includes an inflow portion configured for oil particles to be introduced therethrough, and a channel provided to discharge air current and oil particles, which are introduced through the inflow portion, to an outside, wherein the channel includes an upper channel disposed in parallel while spaced apart in a predetermined distance to form the inflow portion, and a lower channel comprising a direction changing portion provided to change a direction of the air current and the oil particles introduced through the inflow portion, and a guide portion having a predetermined angle to guide the oil particles and the air current having been changed in direction by the direction changing portion.

05-30-2013

20160054006

CONTROL OF EXHAUST SYSTEMS - Exhaust capture and containment are enhanced by means of automatic or manual side skirts, a sensitive breach detector based on interference effects, a combination of vertical and horizontal edge jets, and/or corner jets that are directed to the center diagonally from corners. Associated control functions are described.

02-25-2016

20120125316

VENTILATION SYSTEM FOR A RANGE HOOD WITH EXHAUST AND RECIRCULATION OPTIONS - A ventilation system for a range hood of a kitchen area is provided. More particularly, a kitchen ventilation system is provided that has both exhaust and recirculation options that are provided by internally contained features for directing the flow of air. The system can be installed as a modular unit as part of a new or existing range hood.

05-24-2012

20130167826

BLOWER FOR DOWNDRAFT COOKING APPLICATIONS AND ASSOCIATED METHOD OF USE - A blower for a downdraft cooktop that includes a blower housing, having a top portion and a bottom portion, which includes an inlet that can be fluidly coupled to a downdraft cooktop and an outlet for removing air from the blower housing, a fan located between the input and the outlet of the blower housing, a motor having a rotor with a shaft, having a top portion and a bottom portion, and a stator, wherein the bottom portion of the rotor is operatively attached to the fan, a rotatable member operative attached to the top portion of the rotor, and a motor housing enclosing the motor, having a top portion, a bottom portion, at least one inlet opening and at least one outlet opening, wherein air for cooling the motor is drawn through the motor housing without utilizing the air located within the blower housing.

07-04-2013

20140034040

DOWNDRAFT SYSTEM - Some embodiments of the invention provide a downdraft assembly capable of ventilating a cooktop including housing with a frame, a fluid box, and a movement assembly with a belt-lift. In some embodiments, the movement assembly can include a vertically moveable chimney. Some embodiments include a chimney with an upper and lower horizontal member and dual fluid inlets. In some embodiments, a first control panel can be coupled to the housing to activate at least one function of the downdraft assembly while remaining substantially stationary as the chimney moves. Some embodiments include a second control panel coupled chimney. Some embodiments include a visor and at least one illumination source configured and arranged to at least partially illuminate the cooktop. In some embodiments, the visor can articulate to control illumination or the flow of a cooking effluent into at least one of the dual inlets.

02-06-2014

20120152226

HEAT SINK FOR A COOKING APPLIANCE - A heat sink for LEDs or other electronic elements in a kitchen appliance is provided. The chassis or other heat conducting components of the appliance are used as a heat sink to conduct away heat. The LEDs or other electronic features may be connected directly to the heat sink or may be connected by e.g., a bracket.

AIR-CIRCULATING MODULE AND FUME EXTRACTION DEVICE - An air-circulator includes an housing with an air inlet, an air outlet opening, an odor filter, and an insertion opening for inserting the odor filter. The odor filter is assigned to the air outlet opening.

01-21-2010

20140331988

Range Hood System and Method for Moving Air - A method of moving air comprises providing a recreational vehicle having a range for cooking, and providing a range hood and attaching the range hood to the recreational vehicle above the range, the range hood comprising a body, an outlet for exhausting air, a motor capable of a plurality of speeds, a fan connected to the motor, and a fan switch connected to the motor to control a speed of the motor.

11-13-2014

20150101588

GREASE FILTER, MANUFACTURING METHOD THEREOF AND COOKING DEVICE HAVING THE SAME - A grease filter, which includes a first channel having an inlet portion through which oil particles flow in, and a first guide unit configured to guide the oil particles flowing in through the inlet portion, and a second channel having an outlet portion through which the oil particles and air current flowing in through the inlet portion is discharged into the outside, and at least one second guide unit configured to guide the oil particles and air current to be discharged through the outlet portion. Here, the first channel and the second channel are detachably provided. The grease filter can be easily repaired and maintained, and collection efficiency can be improved due to such a configuration.

DAMPER SUITABLE FOR LIQUID AEROSOL-LADEN FLOW STREAMS - A flow control device has a duct section with a plurality of damper blocking elements, each having a major plane. The damper blocking elements are pivotably connected to the duct section and movable in a range that is limited to ensure that, when the duct section is mounted in a preferred orientation, the damper blocking element major planes always form an angle of at least 45 degrees from the horizontal throughout the range. The range is such that the plurality of damper blocking elements can selectively close and open the duct. The blocking elements can completely close the duct, for example, to block natural convection.

10-22-2015

20150316273

APPARATUS FOR CHANNELLING COOKING FUMES - An apparatus for channelling cooking fumes arising from cooking taking place on a stovetop in a designated area, the apparatus comprising a suction duct having at least one inlet configured for intake of air containing the cooking fumes, the suction duct configured to channel the air containing the cooking fumes away from the designated area; and a supply duct having at least one outlet configured for outflow of air over at least a portion of the stovetop such that the cooking fumes are at least partially directed by the air towards the at least one inlet of the suction duct; the apparatus being hoodless.

11-05-2015

20140150771

COOKTOP VENTILATION AND COOLING SYSTEM - A domestic cooking appliance is provided. The appliance includes an oven having an oven exhaust duct located above the oven, and an exhaust fan for moving cooling air though the oven exhaust duct and out of an exhaust opening located at an upper rear location of the oven; and a cooktop located above the oven, the cooktop having a main unit configured to be positioned above the oven and having a container support for supporting cooking containers to be heated by the cooktop; and a ventilation system for routing cooling air through the main unit, the ventilation system having a cooling air inlet located at a bottom front of the main unit and above the oven, and a cooktop duct that channels the cooling air from the cooling air inlet to the container support or channels the cooling air from the container support to the oven air exhaust duct.

06-05-2014

20140116414

CUSTOM RANGE HOOD SYSTEM AND METHOD - Embodiments of the invention provide a range hood system including a housing, a ventilation system including an inlet and a fan, an illumination source, and a user interface coupled with a control system. In some embodiments, a fan speed can be varied, and in some further embodiments, the range hood system can include a filter change indicator and fan delay-off feature. In some other embodiments, the illumination intensity can be varied to provide variable illumination intensity to the range top surface. Some embodiments can include a clock, a timer coupled to an audible alarm, and a fan delay-off time coupled to a user interface. In some other embodiments, a heat sensor can be coupled to a component of a range hood system, and a heat sentry mode can display a status on a user interface, and can operate a fan if the temperature exceeds a preset limit.

05-01-2014

20140034039

AIR EXCHANGE SYSTEM WITH MULTIPLE AIR BLOWERS OR FANS TO PRODUCE A CYCLONE-LIKE AIR FLOW - An air exchange system places the air pumps or fans outside of the main air outflow pathway through a device, such as a range hood. By using this configuration, the system is made safe, easy to maintain with less noise and may even increase the efficiency of the air pump by not subjecting it to debris, particles or turbulence in the air flow, also flexible to add more pumps with significant increase the size of the air exchange system. Air pumps can be operably connected to push air into two or more air reservoirs. Each air reservoir has a narrow air outlet slit along with a Coanda design. When air comes out of the narrow air outlet, it has high speed and generates a negative pressure due to the Bernoulli effect. Such negative pressure will bring more air around into the air flow system, thus causing a desired air exchange.

02-06-2014

20160069580

VENTILATION SYSTEM FOR A ROOM - The present invention relates to a ventilation system for a room which comprises a hood for domestic use located in said room, a wall fan located in said room, a plurality of transducers configured to detect a respective plurality of characteristic parameters of the gases in said room; processing and control means in signal communication with said plurality of transducers and in signal communication with said first control means, processing and control means electrically connected with said plurality of transducers and in signal communication with said first control means, said processing and control means comprising firmware configured to process said detected characteristic parameters and to transmit a first control signal to control said hood for domestic use. The characterizing feature is that said hood for domestic use is in signal communication with said wall fan via a first transmitter module, located in said hood, and configured to transmit a second signal, said wall fan comprising a first receiver module configured to receive said second signal; said second radio frequency signal being generated by said hood according to said first signal to instruct said second control means to turn on said wall fan and keep it in this state for a first predetermined ON-time when one or more of said characteristic parameters detected by said plurality of sensors exceed respective predetermined threshold values.

CONTROL OF EXHAUST SYSTEMS - Exhaust capture and containment are enhanced by means of automatic or manual side skirts, a sensitive breach detector based on interference effects, a combination of vertical and horizontal edge jets, and/or corner jets that are directed to the center diagonally from corners. Associated control functions are described.

Air Collecting Device And Exhaust Air Box, In Particular Usable In Said Device - The invention relates to an air holding device comprising a channel system raised from a suction opening disposed at a height of a workstation generating dirty air or vapours and leading to at least one outlet opening. An exhausting fan is placed between a prefilter and at least one odour filter. The channel system is embodied in the form of an exhaust air box disposed downstream of the exhaust fan. The lateral surface of the exhaust air box comprises an air inlet which is connected to the downstream side of the exhausting fan. The other lateral surfaces are selectively provided with air outlet openings covered respectively with an odour filter having an adjustable air resistance. Said odour filter preferably consists of a foam material coated with active carbon and the air resistance thereof is selectable according the thickness and/or porosity of the foam material.

08-28-2008

20090211564

Smoke Exhaust With An Air Curtain Fan - A smoke exhaust has a casing, a suction fan and an air curtain fan. The casing has an air chamber, an air duct and a smoke collecting eaves. The air chamber has a lower inlet and an upper inlet. The smoke collecting eaves is mounted on the casing. The suction fan is mounted in the casing. The air curtain fan is mounted on the eaves and is capable generating a downward air curtain. The air curtain prevents the smoke from spreading out of the smoke exhaust.

08-27-2009

20090199844

EXHAUST HOOD WITH AIR CURTAIN - An exhaust hood captures and contains a thermal plume with a minimum of exhaust air by defining a short-throw planar jet around a protected perimeter. Corner interference is mitigated by various mechanisms including having at least one of adjacent planar jets run only partly along a respective edge such that said first and second curtain jets do not meet at said corner; having a direction of the planar jets proximate corners where they meet being intermediate between respective directions of the jets along respective main portions of the perimeter; or having a direction of the jets of one of the adjacent edges be horizontal while the other is vertical.

08-13-2009

20080202492

SMOKELESS COOKER - A smokeless cooker includes a table located indoors, with a cabinet, which may include a plurality of individual boxes stacked and assembled together, below the table. A gas-discharge flow path leads from the cabinet to the outdoors. The cabinet includes an inner box with an open upper portion in an upper opening section of an outer box. An installed cooking means is located inside the inner box. A suction flow path is formed outside the inner box, with a suction hole in the inner wall of the suction flow path above a heating surface of the installed cooking means. The gas-discharge flow path includes a fat/oil filtering section, an absorption deodorizing section, a HEPA filter and a fan. A duct leading to the outdoors is present at the downstream side of the HEPA filter.

08-28-2008

20100275900

Exhaust air mist separator - A grease containment apparatus to remove grease and other contaminants from hot air exiting a kitchen area through a vent system which includes a vertical separator.

11-04-2010

20100258109

RETROFIT APPARATUS FOR A COOKING DEVICE - A retrofit apparatus for a preexisting cooking device comprises a hood that defines a liquid removal section, a motor disposed within the hood, and a motor gear rotatable by the motor to facilitate rotating a centrifugal liquid removal device. The motor gear may comprise a plurality of teeth configured to engage a motor gear coupling on a shaft of the centrifugal liquid removal device, and the motor gear may be configured to automatically engage the motor gear coupling to facilitate rotating the centrifugal liquid removal device. In other embodiments, a lifting mechanism in the preexisting cooking device is configured to move the centrifugal liquid removal device from a cooking section to the liquid removal section.

10-14-2010

20140311476

RANGE EXHAUST CLEANING SYSTEM AND METHOD - A cleaning system for a cooking range exhaust having a range hood, a backsplash, and an exhaust flue for exhausting cooking effluent is disclosed. The cleaning system can include a fluid delivery system constructed for partial placement within the cooking range exhaust. The fluid delivery system can include a hood spray conduit constructed for placement within the hood and comprising spray openings for directing a degreasing composition to the backsplash. The fluid delivery system can also include a flue spray conduit constructed for placement within or outside the exhaust flue and comprising at least one spray opening for directing the degreasing composition to an interior surface of the flue. The cleaning system can include a pump system constructed for conveying the degreasing composition from a degreasing composition source and through the fluid delivery system. A method of cleaning a cooking range exhaust and a self-cleaning exhaust system are also disclosed.

10-23-2014

20090272372

Kitchen Hood Assembly with a Combination Cleaning and Fire Suppression System - A kitchen hood assembly includes a combination hood cleaning and fire suppression system. The hood assembly includes a hood structure and a riser connected thereto. An exhaust blower forces an exhaust stream of air into the hood and through the riser. A combination hood cleaning and fire suppression system is incorporated into the hood structure. The combination hood cleaning and fire suppression system includes an elongated spray bar that is connected to a water source and includes a surfactant injector that injects a surfactant into the water being directed to the spray bar. In one mode of operation, the spray bar is effective to clean the hood assembly. In another mode of operation, when a fire is sensed in or in the vicinity of the hood, the same spray bar is utilized to inject an aqueous liquid into the hood to suppress the fire.

11-05-2009

20130074823

RANGE EXHAUST CLEANING SYSTEM AND METHOD - A cleaning system for a cooking range exhaust having a range hood, a backsplash, and an exhaust flue for exhausting cooking effluent is disclosed. The cleaning system can include a fluid delivery system constructed for partial placement within the cooking range exhaust. The fluid delivery system can include a hood spray conduit constructed for placement within the hood and comprising spray openings for directing a degreasing composition to the backsplash. The fluid delivery system can also include a flue spray conduit constructed for placement within or outside the exhaust flue and comprising at least one spray opening for directing the degreasing composition to an interior surface of the flue. The cleaning system can include a pump system constructed for conveying the degreasing composition from a degreasing composition source and through the fluid delivery system. A method of cleaning a cooking range exhaust and a self-cleaning exhaust system are also disclosed.

03-28-2013

20090013989

LINEAL SLOT VENTILATOR WITH INTERNAL CLEANING SYSTEM AND ADJUSTABLE BAFFLE - In an exemplary embodiment, this system is found within a kitchen hood, such as those found in restaurants, used to remove excess cooking heat and grease. Building fire safety and sanitation codes mandate routine hood maintenance to maintain fire safety, operator comfort and workplace sanitation. Conventional maintenance can be very messy, time consuming and quite expensive. In an exemplary embodiment, the hood is fabricated to incorporate an integral heat exchanger which further creates a trough housing a grease extraction device. The exchanger and trough are located in such a manner that collected heat and/or grease may be removed from the exhaust air stream and further fabricated to permit automatic and/or semi automatic cleaning of both devices and trough. This invention improves fire safety and sanitation, saves time and reduces maintenance costs. Cleaning is achieved using less energy and keeps the heat exchanger at peak efficiency to further enhance energy savings.

01-15-2009

20090194093

BAFFLE-TYPE GREASE FILTERS FOR KITCHEN VENTILATORS - A grease filter has upper and lower baffle assemblies that define tortuous paths for exhaust air flowing therethrough. The baffles in the upper assembly include a perforated metal strips and bent free edges to maximize grease extraction from the exhaust air. A hinge connects the upper and lower baffle assemblies and permits the assemblies to pivot from a closed position to an open position. In the open position, access is provided to all surfaces of the assemblies so that they can be efficiently cleaned.

GREASE FILTER ASSEMBLY FOR - A grease filter assembly for use in a range hood to remove airborne grease is disclosed to include an air deflector with guide rollers and grille, a roll of grease filter mounted in a filter supply chamber at the air deflector with one end of the grease filter extending out of the filter supply chamber over the grilles and the guide rollers into a waste filter collecting chamber, and a motor mounted in the air deflector and controllable to transfer the grease filter into the waste grease collecting chamber by means of a sheet-transfer cylinder and an impression cylinder.

11-26-2009

20120204855

Cooking Device with Ventilation and Filtration System - A cooking device with a ventilation and filtration system is disclosed that may be a mobile cart. The ventilation and filtration system provides removal of heated and effluent-laden air from the vicinity of the cooking device utilizing a manually telescoping vent having a handle for positioning the vent. The telescoping vent piece may be easily manually removable and reattachable for cleaning. Further, the downdraft ventilator is in communication with a filtration and effluent removal system that may have one or more filters and may also have a drip tray.

08-16-2012

20120152228

METHOD AND APPARATUS FOR THE THERMAL PROTECTION OF LED LIGHT MODULES IN A RANGE HOOD APPLIANCE - A method and apparatus for the thermal protection of LED light modules in a range hood appliance is provided. If the temperature of the LED light module reaches a predetermined temperature, one or more protective actions are taken to prevent over heating the LED light module. Such protective actions can include e.g., decreasing and/or terminating the power to the LED light module, opening a damper to provide air for cooling the LED light module, and/or activating a fan to provide forced convection cooling of the LED light module.

06-21-2012

20130087135

BUILT-IN RETRACTABLE VENTILATION HOOD ASSEMBLY - A built-in ventilation hood assembly for air exhausting is disclosed. An example built-in ventilation hood assembly may comprise a housing and a retractable hood unit configured to be slidably mounted within the housing. The retractable hood unit may comprise at least one air intake into which air is drawn. The built-in ventilation hood assembly may further comprise a driving unit configured to slide the retractable hood unit out from the housing or slide the retractable hood unit in to the housing, and a ventilation unit being installed within the housing and configured to draw air in through the at least one air intake.

04-11-2013

20120152229

Range hood capable of resisting draft - A range hood capable of resisting draft is provided above a counter on the top of which an air-generation device is located. The range hood comprises an air-extraction hood that has a bottom provided with an elongate air-extraction slot for drawing air upwards. Besides, an air blow groove is provided in front of the elongate air-extraction slot for blowing air downwards. A long left upright plate and a long right upright plate are respectively provided below the left and right lateral surfaces of the air-extraction hood. Thereby, when the elongate air-extraction slot draws in air, an oblique airflow is formed. Besides, the long left and right upright plates are able to hinder the draft coming from lateral sides, so as to protect the oblique airflow structure. Consequently, an intact upwards-flowing airflow is formed to exhaust soot and harmful gases.

Low Profile Exhaust Hood - A low profile exhaust hood has a high inlet and a high aspect ratio of horizontal to vertical. A sloping wall of the recess guides hot plumes upwardly to the inlet. The inlet is sized to provide an exhaust face velocity that is at least as high as a highest possible plume velocity for a 400 F oven. The inlet is located high and forwardly to cause a suction zone to be generated near the forward edge of the hood to aid in capturing plumes tending to escape which are remote from the sloping wall.

12-18-2008

20110315136

Extendable hood for microwave oven positioned over the range or cook top - An extendable hood and mounting bracket for mounting on the underside of a microwave oven which is positioned above a cook top, the extendable hood being frictionally engaged in the bracket and selectively removable or slidably retracted when not in use, the extendable hood extending over the front burners of the cook top and capturing and directing any fumes, smoke, or odors generated from cooking on the front burners to the fan and filter unit mounted on the underside of the microwave oven.

12-29-2011

20100206292

Extendable hood for microwave oven positioned over the range or cook top - An extendable hood and mounting bracket for mounting on the underside of a microwave oven which is positioned above a cook top, the extendable hood being frictionally engaged in the bracket and selectively removable or slidably retracted when not in use, the extendable hood extending over the front burners of the cook top and capturing and directing any fumes, smoke, or odors generated from cooking on the front burners to the fan and filter unit mounted on the underside of the microwave oven.

08-19-2010

20090107482

PROTECTIVE BARRIER SYSTEM AGAINST COOKING SPLATTER - A barrier system protecting a wall from cooking surface splatter includes a panel having an exterior surface and a rear surface spatially offset from the wall. The panel also has a bottom edge and an opposing upper edge. The panel is secured to the wall with multiple securements such that the lower edge of the panel is positioned between 0.635 and 1.27 centimeters above the cooking surface. The securements include a pedestal that defines the offset between the wall and the rear surface of the panel and a fastener in simultaneous contact with the panel by way of an aperture in the panel, the pedestal, and the wall. A panel formed of tempered glass is amenable to inclusion of an ultraviolet illumination light source that facilitates degradation of splatter on the panel.

04-30-2009

20090260616

VENTILATING KITCHEN RANGE SUBFRAME - A kitchen range subframe includes air channels for passively directing air to and/or from an element enclosure within the kitchen range, and a range component shelf that is configured to mount one or more range components to the kitchen range subframe. The kitchen range subframe provides improved ventilation for the kitchen range, and mounting locations for range components such as gas lines and kitchen range controls.

10-22-2009

20100319676

EXHAUST HOOD WITH GREASE ABSORBING MATERIAL ON A ROLL - A kitchen exhaust system includes a dispenser and a receiver, with a supply spool of grease absorbent material provided in the dispenser. In a process to replace the contaminated material, portions of the web can be selectively removed from the air flow path into the receiver while drawing uncontaminated portions of the web from the dispenser to the path of air flow.

12-23-2010

20160131366

OVEN RANGE VENTILATOR WITH MICROWAVE COMPARTMENT - A ventilator hood assembly for mounting above a residential cooking range. The assembly includes a lower housing with a filter for capturing particulates entrapped in the air as it is drawn in from below the lower housing, and an upper section including a blower unit powered by a motor. The blower unit draws air in from the open bottom through the filter and expels air into an exhaust duct. An upper plenum is located below the blower unit and channels air into the blower unit. A microwave compartment is located above the lower housing and below the upper plenum. An intermediate conduit is located behind at least a back wall of the compartment and is connected to the lower housing and the upper plenum so as to provide a channel through which air from the cooktop can flow to the blower unit.

05-12-2016

20100059040

VENT SYSTEM FOR A COOKING APPLIANCE - A vent system for a cooking appliance is disclosed. The appliance has a cooktop surface supporting a plurality of surface heating units. The vent system includes a vent box mounted beneath the cooktop surface; a telescopic vent assembly telescopically mounted relative to the vent box, the telescopic vent assembly being movable between a retracted position proximate the cooktop surface and an extended position above the cooktop surface; a retention unit configured to releasably hold the telescopic vent assembly in the retracted position; and a stored energy mechanical drive unit configured to move the telescopic vent assembly in a first direction to the extended position upon release of the retention unit.

03-11-2010

20150316272

Indoor Grill - An indoor grill includes a system for retaining a desired amount of heat and smoke during cooking, while passing excess smoke through a filtering system. A water tray is disposed below the heating element, thereby resisting a tendency for dripping grease to create excessive smoke. A hood includes interior and exterior portions, with a space defined therebetween, and the space being accessible along the bottom edge of the hood. A filtration system is connected to the space between the interior and exterior housing portions. Smoke is drawn into the space between the inner and outer hood from the bottom edge, permitting some smoke to remain within the hood for flavoring. When the hood is opened, the hood's edge is raised, raising the entrance to the space between the inner and outer portions up towards the smoke that remained within the hood, and drawing that smoke into the filtration system.

11-05-2015

20110056478

Hood Device for Grill - A hood device for grill comprises a hood, a telescoping tubing, a filter assembly, a grease cup, and an external fan. The hood partially covers a grill at a first elevated vertical position and collects smokes from the grill. The telescoping tubing extends from the hood and is configured for ventilating, and telescoping between the first and second positions. The filter assembly is disposed at a lower end of the telescoping tubing, and comprises filter with concentric and cylindrical layers. The grease cup is for collecting grease from the filter. The fan is for building up an ascending air current inside the telescoping tubing. A velocity of the ascending air current is determined according to the first elevated vertical position, a ratio of a diameter of the hood to a diameter of the grill, and a surface temperature of the grill.

03-10-2011

20100051010

Recirculating, self-contained ventilation system - A system includes an intake, an exhaust, and an adjustable directing member. The intake is for taking in air, the exhaust is for exhausting air, and the adjustable directing member is positioned for directing exhaust air toward the intake. Another aspect is a system that includes a source of polluted air and an air cleaning system. The air cleaning system includes an intake, an exhaust, and a directing member. The intake is for taking in polluted air and the exhaust is for exhausting air. The directing member is for directing air from the exhaust toward the intake to provide an air screen for keeping the polluted air in the vicinity of the intake.

03-04-2010

20100242945

INTEGRATED STOVE IN WHICH OIL SMOKE IS DISCHARGED DOWNWARD - An integrated stove in which oil smoke is discharged downward comprises a cabinet body; a plurality of cylindrical sunken stove holes are installed on the panel of the body; a cooker is installed on the soleplate of the stove holes; major arc shaped air suction ports are installed at the upper part of the wall of the stove holes; a handle hole is installed in one side of the stove holes facing person; a soleplate parallel to the panel basically is installed; the soleplate has a structure in the shape of pan bottom; and the part of the soleplate close to the side wall of the body extends to the combined part of the panel and the soleplate. The panel is mounted at the top of the side wall. The stove holes are embedded in the double-layer structure formed by the panel and the soleplate. The side wall of the stove holes is both connected with the panel and the soleplate in sealing way, the panel, the soleplate and the side wall of the stove holes are enclosed to form a communicated sealed gas collecting chamber. The air port of a blower is installed at the open hole of the soleplate, and an exhaust pipe is connected with the blower.

09-30-2010

20100043772

EXTRACTOR HOOD - An extractor hood including a housing, a vapor shield pivotably mounted on the housing, and at least one pivot bearing connecting the vapor shield to the housing. The at least one pivot bearing has a bearing axis in a vicinity of a center of gravity of the vapor shield.

02-25-2010

20150323197

AUTONOMOUS VENTILATION SYSTEM - An autonomous ventilation system includes a variable-speed exhaust fan, a controller, an exhaust hood, and a spillage sensor. The exhaust fan removes air contaminants from an area. The controller is coupled to the exhaust fan and adjusts the speed of the exhaust fan. The exhaust hood is coupled to the exhaust fan and directs air contaminants to the exhaust fan. The spillage sensor is coupled to the controller, detects changes in an environmental parameter in a spillage zone adjacent to the exhaust hood, and communicates information relating to detected changes in the environmental parameter to the controller. The controller adjusts the speed of the exhaust fan in response to information relating to detected changes in the environmental parameter.

11-12-2015

20140041649

DOWNDRAFT SYSTEM - Some embodiments of the invention provide a downdraft assembly capable of ventilating a cooktop including housing with a frame, a fluid box, and a movement assembly with a belt-lift. In some embodiments, the movement assembly can include a vertically moveable chimney. Some embodiments include a chimney with a horizontal member coupled to a first vertical region and a second vertical region and including a fluid inlet. In some embodiments, a first control panel can be coupled to the housing to activate at least one function of the downdraft assembly while remaining substantially stationary as the chimney moves. Some embodiments include a second control panel coupled chimney. Some embodiments include a visor and at least one illumination source configured and arranged to at least partially illuminate the cooktop. In some embodiments, the visor can articulate to control illumination or the flow of a cooking effluent into a fluid inlet.

Downdraft That is Telescoping - A telescoping downdraft ventilator with a movable fan and efficient way of removing gases and fumes is disclosed. The telescoping downdraft ventilator has the ability to fit behind a cook top unit beneath a countertop when the cook top unit is located against a wall. The telescoping downdraft ventilator has a fan that may be attached in front of the unit or behind the unit. The ventilator collects and draws in exhaust fumes and smoke, filters it, and re-circulates or expels it through a movable exhaust duct.

12-05-2013

20140182575

AUTONOMOUS VENTILATION SYSTEM - An autonomous ventilation system includes a variable-speed exhaust fan, a controller, an exhaust hood, and a spillage sensor. The exhaust fan removes air contaminants from an area. The controller is coupled to the exhaust fan and adjusts the speed of the exhaust fan. The exhaust hood is coupled to the exhaust fan and directs air contaminants to the exhaust fan. The spillage sensor is coupled to the controller, detects changes in an environmental parameter in a spillage zone adjacent to the exhaust hood, and communicates information relating to detected changes in the environmental parameter to the controller. The controller adjusts the speed of the exhaust fan in response to information relating to detected changes in the environmental parameter.

07-03-2014

20100000512

Pollutant Removing Device and Dual-Air Curtain Range Hood Using the Device - A pollutant removing device includes first and second air blow devices respectively located at front and rear ends of a pollutant generation source or an oven and respectively including a first elongate air blow slot and a second elongate air blow slot so as to blow air upward. A suction device is located above a counter top to which the pollutant generation source or the oven is installed. The suction device includes at least one elongate suction opening which is connected with a suction machine. The at least one elongate suction opening is parallel to the first and the second elongate air blow slots. Two air curtains are formed between the at least one elongate suction opening and the first and second elongate air blow slots. The gas, vapor, or particulate type pollutants located between the two air curtains is sucked via the at least one elongate suction opening.

01-07-2010

20160091211

INDUCTION VENTILATION SYSTEM FOR AIR SUPPLY AND EXHAUST - Disclosed is an induction ventilation system for air supply and exhaust, including: an upper plate that has an induction heating portion thereon and a lift hole in a rear portion thereof; a vertically movable unit that moves up and down through the lift hole and is equipped with a filter; an air suction and discharge unit including a chamber with an oil drain hole, a flexible duct connected between the vertically movable unit and the chamber, an air suction fan, and a discharge pipe through which indoor air drawn by the air suction fan is discharged outside; a grease tray installed under the chamber to collect grease that is condensed on the surface of an air suction passage; and an air supply hood that guides the indoor air to the air suction passage by supplying air to the upper plate using an air supply fan.

03-31-2016

20140174429

EXHAUST HOOD AND METHOD FOR CONTROLLING THE OPERATION OF AN EXHAUST HOOD - An exhaust hood has a fan apparatus for drawing away discharge air from a cooking appliance, which is arranged beneath the exhaust hood and which has at least one cooking area. A temperature detection device detects a temperature of at least one cooking area of the cooking appliance and a cooking vapor detection device detects cooking vapors in the discharge air which is drawn away by suction by the fan apparatus. A control device of the exhaust hood switches on the fan apparatus depending on a temperature which is detected by the temperature detection device and controls a suction-removal power of the fan apparatus depending on cooking vapors which are detected by the cooking vapor detection device.

06-26-2014

20140290641

RECIRCULATING DOWNDRAFT SYSTEM FOR A COOKING APPLIANCE - Provided is a cooking appliance that includes an oven cavity and an oven door pivotally mounted to a front surface and configured to selectively provide access to an interior of the oven cavity. A cooktop includes a heating element and an inlet of a downdraft system exposed at a top surface of the cooking appliance. An outlet is provided through which air drawn into the downdraft system through the inlet is exhausted to an ambient environment of a room in which the cooking appliance is located. An air duct system conveys air between the inlet and the outlet, and a blower draws air from the ambient environment of the cooking appliance adjacent to the cooktop into the inlet and through the air duct system to be expelled through the outlet back into the ambient environment.

10-02-2014

20150330641

DOWNDRAFT VENTILATION SYSTEM - A downdraft ventilation system can comprise: a movable chimney; an actuator configured to couple to and move the movable chimney; and a safety mechanism. The safety mechanism can include: a fixed bracket configured to engage the movable chimney member; a floating bracket configured to be positioned within and releasably engaged to the fixed bracket, the floating bracket configured to couple to the actuator; an energy storage member having a first end and a second end, the first end configured to engage the fixed bracket and the second end configured to engage the floating bracket; and at least one limit switch configured to engage the fixed bracket and the floating bracket, the at least one limit switch configured to remove power to the actuator when an obstruction of the movable chimney causes the floating bracket and the fixed bracket to disengage.

11-19-2015

20100294259

CONTROL OF EXHAUST SYSTEMS - Exhaust capture and containment are enhanced by means of automatic or manual side skirts, a sensitive breach detector based on interference effects, a combination of vertical and horizontal edge jets, and/or corner jets that are directed to the center diagonally from corners. Associated control functions are described.

11-25-2010

20130340742

Cook Top with a Ventilation System and a Blower Mount Therefor - A cook top having a cooking surface includes a number of heating elements. The cook top includes a number of controls for controlling operation of the heating elements and other components of the cook top. A vent is integrally provided with the cook top and in fluid communication with a ventilation system configured to draw air through the vent. The ventilation system includes a plenum defining a cavity, which may include a filter for removing particulate matter from the exhausted air. A blower assembly is coupled to the plenum for drawing the an from the cooking surface through the vent and the plenum. The blower assembly and the plenum are coupled to one another by a coupling element that is configured to enable an operator or installer of the cook top to selectively direct the exhaust of the blower assembly in a plurality of predetermined directions.

HOOD DEVICES, METHODS, AND SYSTEMS WITH FEATURES TO ENHANCE CAPTURE AND CONTAINMENT - A device that augments the capture and containment of an exhaust hood using jets is retrofitable to existing exhaust hoods. The device, in embodiments, forms a self-contained system that is separate from the hood and can be installed in existing hoods providing them with increased performance. Various embodiments are shown which are suitable for canopy and backshelf hood designs.

EXTRACTOR HOOD - An extractor hood includes a housing with a fan disposed therein and an extraction opening for the entry of fumes into the extractor hood on the bottom of the extractor hood. The extractor hood has an air outlet gap on the top of the extractor hood in the edge region of the extractor hood. The air outlet gap is adjacent to a surface that is arched in the direction of the bottom of the extractor hood.

ASSEMBLY FOR COOKING WITH A SAFETY DEVICE - An assembly for cooking has a safety device installed on an air guider. The safety device comprises a sensor detecting a wind flow from the air guider and a processing unit comparing a sensed flow value of the wind flow with a predetermined flow value and determining the flowing condition of the air guider and executing a controlling action. When oil sludge obstructs an opening of the air guider to cause the flow value of cooking fumes to be lower than the predetermined value, the processing unit stops an air pump of the air guider or activates an alarm unit to warn operators to clean the air guider, thereby maintaining an efficient inhaling effect of the air guider. The processing unit can concurrently promote a rotation speed of the air pump to keep inhaling an amount of cooking fumes for avoiding scattering the cooking fumes in dining spaces.

12-19-2013

20100095949

Pollutant removing device and oblique single air curtain range hood using the device - The present invention relates to a pollutant removing device and an oblique single air curtain range hood using the device. The rear side of the range hood is adjacent to a wall and the range hood includes an air blow device and a suction device. The air blow device has an elongate air blow slot that is provided in front of a counter top and through which air is blown upward. The suction device is located above the counter top and includes an elongate suction opening that is connected with a suction machine to produce upward suction force. The elongate suction opening is parallel to the elongate air blow slot in a way that the elongate suction opening is above and spaced from the elongate air blow slot toward the wall. By means of the operation of the suction machine, an oblique air curtain that is nearly two-dimensional is formed between the elongate suction opening and the elongate air blow slot. The gas or harmful gas located between the oblique air curtain and the wall can be sucked via the elongate suction opening. Consequently, the escape of pollutants is decreased and the ability against interference of sucking harmful gas resulted from ambient air turbulence can be enhanced.

04-22-2010

20100126494

EXHAUST HOOD WITH ADJUSTABLE SUPPLY AIR CONTAINMENT AIR STREAMS AND AIR CURTAINS - An exhaust hood and related methods for exhausting fumes are disclosed. The exhaust hood comprises a housing forming a collection region having an entry portion and an upper portion disposed above the entry portion, an exhaust inlet coupled with the housing and configured to draw air from the entry and upper portions, and a supply assembly coupled with the housing and configured to output a flow of supply air. The supply assembly is configured to direct a first portion of the supply air across the collection region generally towards the exhaust inlet and direct a second portion of the supply air generally downward away from the collection area. The directed first portion of the supply air divides the collection region into the entry and upper portions. The portion of the supply air directed into at least the first portion or the second portion can be adjustable.

05-27-2010

20100326419

RANGE HOOD - A range hood, containing at least a fan having a housing and an impeller, an oil filter, a cover, a fume exhaust cover, a light, and a switch. The housing of the fan is a circular double-chamber or multi-chamber structure with an air inlet and an air outlet, and the impeller of the fan contains at least one group of arc-shaped blades each having a closed side and being enlarged in an axial direction.

12-30-2010

20100051011

VENT HOOD FOR A COOKING APPLIANCE - A vent hood is disclosed. The vent hood includes an enclosure having an inlet and a fluid passage, a first stage fluid moving device disposed adjacent to the inlet and configured to provide a substantially uniform inflow of fluid across the inlet, and a second stage fluid moving device disposed within the enclosure and downstream of the first stage fluid moving device.

03-04-2010

20100065038

Exhaust Canopy - A stove vent and canopy positionable above a cooking surface to any of a plurality of positions between a fully retracted position and a fully extended position. In a fully retracted position, the vent is positionable immediately adjacent to the surface allowing for venting of cooking vapors without blocking the user's view over the stove. Telescoping to the fully extended to position places the vent over the cooking surface and may employ a clear backsplash to continue to maintain the user's view behind the cooking surface.

03-18-2010

20150114384

MODULAR VENT HOOD BLOWER KIT FOR IN-LINE OR EXTERNAL APPLICATION - A vent hood kit comprises a canopy assembly having an intake end and an outlet end, a blower housing selectively and alternatively coupled with the exhaust end of the canopy assembly in an in-line position and an external position, a blower assembly disposed within a blower housing and in communication with the intake end in both the in-line and external positions and an exhaust duct adapter of the blower housing is configured to be in communication with the intake end in both the in-line and external positions.

04-30-2015

20160097544

COLLECTING HOOD - A collecting hood for capturing exhaust air above cooking areas, production devices and the like is provided. The collecting hood includes a vapor chamber, an extraction chamber and an air supply chamber. The vapor chamber is downwardly open and tapers upward. The extraction chamber is separated from the vapor chamber by a filter or a separator. The filter or separator forms an inclined boundary of the upwardly tapering vapor chamber. The air supply chamber tapers downward and merges at its bottom end into a curved deflection region which opens out into a discharge opening which is arranged at a bottom end of the vapor chamber. Supply air, which is blown into the air supply chamber, emerges from the discharge opening horizontally or upwardly at an angle in the direction of the filter or separator. A negative pressure chamber is arranged between the vapor chamber and the air supply chamber.

04-07-2016

20120247451

TEPPANYAKI ASSEMBLY AVAILABLE FOR SUCKING AIR BY MULTIPLE ANGLES - A teppanyaki assembly available for sucking air by multiple angles comprises a platform including a cooking plane, and an air pump installed in the platform and including an air guider as well as an air channel. Wherein, the air guider has a housing disposed on the cooking plane and a regulator pivoted to the housing. Tuning the regulator allows an air entrance on the regulator to confront an external opening on the housing by different degrees so as to pump air with divergent angles and filter air properly. Besides, an air extracting effect could be favorably controlled in accordance with different food.

10-04-2012

20150059731

HOOD SYSTEM HAVING BUILT-IN ROTOR - The present invention relates to a hood system having a built-in rotor, capable of discharging contaminated gas generated by a source of contamination in a timely manner to prevent the contamination of indoor air in advance. The hood system having a built-in rotor comprises a housing, an exhaust fan, said rotor, and a discharge unit. The housing is arranged on top of the contamination source, and the lower side thereof has an inlet port for feeding in contaminated gas. The exhaust fan is arranged inside the housing, and rotates by means of a rotation-driving device so as to forcibly exhaust the contaminated gas. The rotor rotates together with the exhaust fan to prevent the contaminated gas from diffusing into an indoor area. The discharge unit is arranged on an upper surface of the housing so as to discharge the contaminated gas suctioned by the exhaust fan to the outside.

HOOD ENCLOSURE ASSEMBLY FOR COOK-TOP DOWNDRAFT VENTILATION - Embodiments of the present disclosure are directed towards a hood enclosure assembly for cook-top downdraft ventilation and associated systems, techniques, and configurations. In one embodiment, an apparatus includes one or more structural elements for placement on one or both of the cooking surface or a surface adjacent to the cooking surface that is substantially parallel with the cooking surface, the one or more structural elements being configured to form a cavity to house a vent of a downdraft ventilation system. Other embodiments may be described and/or claimed.

04-02-2015

20100095950

Kitchen Ventilation Hood Apparatus - The present invention provides a kitchen ventilation hood for ventilating the area above a cooking area and for exhausting air containing cooking by-products from a cooking station to an external environment through an exhaust duct while using a reduced airflow. The kitchen ventilation hood of the present invention is designed to minimize the required airflow through the hood in order to thoroughly evacuate the cooking by-products. The kitchen ventilation hood of the current invention has a structure incorporating an arched interior hood surface that directs the air to be ventilated through the air intake gap and the grease filter. The more efficient airflow resulting from the arched interior hood surface allows for removal of cooking by-products with a lower airflow than that required by currently available ventilation hoods. As such, the kitchen ventilation hood of the present invention represents a significant improvement over prior ventilation hoods.

04-22-2010

20130087134

Cookery Air Purification and Exhaust System - An air filtration and exhaust system is described. The system comprises a microcontroller, a power supply, and a series of sensors that detect the presence of airborne contaminants such as ultra fine particles, smoke, natural gas and radon gas. In the presence of these airborne contaminants, the system is designed to inactivate and prevent operation of nearby food preparation appliances. Once these contaminants have been safely removed, the operation of these appliances is restored. In addition, the ventilation system may be equipped with a purification subassembly, which safely and efficiently removes such containments from the area. The system may also comprise an alarm that is activatable in the presence of these contaminants.

04-11-2013

20150338107

SOOT-EXHAUSTING DEVICE - A soot-exhausting device is provided with a left and a right upright plate. A front end of the left upright plate is bended and extended to form a first upright plate and a left deflection plate. The upper part of the free end of the left deflection plate is bended rightwardly to form a left top plate. A front end of the right upright plate is bended and extended to form a second upright plate and a right deflection plate. The upper part of the free end of the right deflection plate is bended leftwardly to form a right top plate. The bottom of the air-extraction hood is provided with a left and a right air blow groove that are respectively in elongate shape and parallel to top side of the left and the right top plate and located at the rear end of each top side.

11-26-2015

20110056479

VARIABLE VENTILATION METHOD AND SYSTEM - A system and method for providing variable ventilation for a cooking environment. The system includes a plurality of cooking appliances, wherein each appliance has various operating parameters indicative of a cooking level of each appliance; a cooking event monitor operably connected to each of the cooking appliances and configured to: (1) determine a level of ventilation for each of the plurality of appliances based upon the cooking level of each appliance, (2) determine a control signal based upon the determined level of ventilation, and (3) transmit the control signal; a motor speed controller operably connected to the cooking event monitor and configured to receive the control signal; and at least one exhaust fan operably connected to the motor speed controller, wherein the motor speed controller adjusts a speed of the exhaust fan based upon the control signal.

03-10-2011

20130061843

RETRACTABLE VENTILATION SYSTEM - A retractable ventilation system for a household appliance includes a lifting motor for moving the ventilation system in two opposing directions, and a switch controlling movement of the lifting motor. A first actuation of the switch moves the ventilation system in a first (or preferred) of the two directions, and a second actuation of the switch moves the ventilation system in a second direction opposing the first direction. Furthermore, a household appliance includes an extractor hood, a cooking appliance or a combination thereof, and at least one of the proposed retractable ventilation systems. A method for operating the retractable ventilation system is also described.

03-14-2013

20130042853

COOKING ASSEMBLY THAT SAVES ENERGY, REDUCES NOISE, AND CIRCULARLY REMOVES FUMES - A cooking assembly that saves energy, reduces noise, and circularly removes fumes comprises a venting outlet disposed opposite to an absorbing inlet of an absorbing device. The air expelled from the venting outlet permits guiding fumes and smells generated during cooking into an absorbing scope of the absorbing inlet, thereby offering a recurring air curtain over a cooking platen. The cooking assembly keeps heating energy but takes away the cooking fumes and smells from the cooking platen via a consistent and recurring operation to clarify the air. The recurring air curtain avoids wasting air conditioning energy and prevents from leaking the air polluted by fumes out, which allows the cooking assembly to omit an extra outdoor discharging pipe but attain a fresh and tranquil dining atmosphere, and decrease the energy consumption of the facility for being friendly to the environment.

02-21-2013

20130037017

LOW PROFILE EXHAUST HOOD - A low profile exhaust hood has a high inlet and a high aspect ratio of horizontal to vertical. A sloping wall of the recess guides hot plumes upwardly to the inlet. The inlet is sized to provide an exhaust face velocity that is at least as high as a highest possible plume velocity for a 400 F oven. The inlet is located high and forwardly to cause a suction zone to be generated near the forward edge of the hood to aid in capturing plumes tending to escape which are remote from the sloping wall.

02-14-2013

20130087133

VENTILATING RANGE HOOD - A ventilating range hood having an interior transverse wall spanning between the side walls of the hood. The transverse wall separates the range hood into a rear chamber and a forward chamber. The transverse wall includes an aperture for allowing communication between the forward and rear chambers and a closure member for selectively opening and closing the aperture. A plate is removably connected to the back wall for covering the rear exhaust opening. In a recirculation only mode, the rear exhaust opening is covered by the removable plate and the closure member is opened so that air drawn into the rear chamber through the air intake flows through the aperture and out the top exhaust opening.

04-11-2013

20130255661

EXTRACTOR HOOD - An extractor hood changes an air volume of a fan in response to a temperature of a cooking subject on a cooker. The hood includes an infrared sensor that detects an average temperature between the cooking subject temperature and an ambient temperature of the cooking subject, a temperature sensor that detects an ambient temperature of the cooker, a signal receiver, and an air-volume controller. The air volume controller calculates the cooking subject temperature based on the average temperature by using the ambient temperature of the cooker as the ambient temperature of the cooking subject, and then determines the air volume of a fan based on the cooking subject temperature and a cooker signal.

10-03-2013

20140069414

RANGE HOOD OF VAPOR-CLEANING TYPE - A range hood of vapor-cleaning type has a chamber module and a vapor-cleaning module. The vapor-cleaning module has a tank, a pump, and a heater. The pump is connected with the tank and the heater. The tank is filled with water, and the water in the tank is pumped to the heater to be heated into vapor by the heater. The vapor is pumped in the chamber module to melt grease adhering in the chamber module. A temperature of the vapor is high, such that grease adhering in the chamber module is melted easily.

03-13-2014

20130008429

Replaceable Capture Hoods for Recirculating, self-contained ventilation system - A system includes a plurality of capture hoods and a hood supporting unit. Each of the plurality of capture hoods has a hood portion and a connection portion. The connection portion is for connection to the hood supporting unit. The hood supporting unit is capable of connecting to just one of the plurality of capture hoods at a time. The hood portions of the plurality of capture hoods have different shapes. The connection portions of the plurality of capture hoods are identical so any one of the plurality of capture hoods can connect to the hood supporting unit.

01-10-2013

20130291855

COMMERCIAL KITCHEN EXHAUST SYSTEM - An exhaust system includes a hood structure having one or more of (i) an exhaust flow infeed surface extending downward from a lower end of the filter unit that helps to feed the thermal plume toward the filter unit, (ii) a bypass flow transition surface extending upward from the upper end of the filter unit and then forward to aid bypass flow in circulating back toward the filter aperture and (iii) a front wall structure that includes a downwardly extending wall portion with a chamfered and/or curved transition portion at its lower end and a rearwardly extending wall portion.

11-07-2013

20130220299

AIRFLOW GUIDING MEMBER AND AIR DUCT WITH AIRFLOW GUIDING MEMBER - The air duct comprises a body and at least an airflow guiding member. The airflow guiding member is detachably configured in a slot outlet of the body. The airflow guiding member comprises a guiding ditch with a receiving section, a regulating section, and a guiding section. An airflow flowing in the body is received by the receiving section into the regulating section and then thrusts out of the body after sequentially compressed by the regulating and guiding sections. An air wall is as such formed above the body to confine the pollutants dispersed in the air.

08-29-2013

20110114076

COMMERCIAL KITCHEN EXHAUST SYSTEM - An exhaust system includes a hood structure having one or more of (i) an exhaust flow infeed surface extending downward from a lower end of the filter unit that helps to feed the thermal plume toward the filter unit, (ii) a bypass flow transition surface extending upward from the upper end of the filter unit and then forward to aid bypass flow in circulating back toward the filter aperture and (iii) a front wall structure that includes a downwardly extending wall portion with a chamfered and/or curved transition portion at its lower end and a rearwardly extending wall portion.

05-19-2011

20140020673

FOOD SERVICE UNIT INCLUDING RECIRCULATING VENTILATION SYSTEM AND FIRE SUPPRESSION SYSTEM - A food service unit for use with a cooking unit includes a food shield including an upper wall, a customer-side wall, and two lateral sidewalls, a ventilation volume defined at least in part by the food shield, a recirculating ventilation system including a filter, a fan downstream of the filter, and an exhaust vent, wherein the fan is configured to draw air from the ventilation volume through the filter and exhaust the air through the exhaust vent, a pressure sensor configured to detect a differential pressure between atmosphere and a location between the filter and the fan, a control system configured to prevent a cooking unit from operating when the detected differential pressure is outside a specified range of pressures, a fire suppression system including a nozzle and a source of fire extinguishing agent and a fire detection sensor configured to detect a fire and activate the fire suppression system.

01-23-2014

20120055460

Internally Adjustable Damper - An internally adjustable damper for use in a commercial kitchen includes a housing having a sidewall defining an interior, a first open end, and a second open end in fluid communication with the first open end. A damper blade is disposed within the housing and is rotatable about an axis of rotation to allow a selectable air flow resistance. An arch extends from the damper blade and adjacent to the sidewall, the arch being symmetric about the axis of rotation. A threaded stud extends from the sidewall into the interior of the housing and is disposed adjacent the arch. A fastener is operatively coupled to the threaded stud, wherein the fastener is adapted to selectively press down against the arch, thereby fixing the location of the damper blade, and retract from the arch, thereby allowing the damper blade to rotate about the axis of rotation. The fastener and the baffle are accessible from inside the housing through either the first open end or the second open end.

03-08-2012

20140083412

BUILT-IN RETRACTABLE VENTILATION HOOD ASSEMBLY - A built-in ventilation hood assembly is designed for installation into a kitchen cabinet immediately above a built-in cooking device. The assembly includes a housing and a retractable hood unit, which may include at least one air intake into which air is drawn; and the housing may include at least one opening for exhaustion of the air taken into the housing. The assembly may also include at least one telescoping linear actuator configured to slide the retractable hood unit out from the housing and back into the housing when needed. The assembly may also include an air blower installed within a rear end of the housing. The air blower includes one, two, or more cross flow fans for uniform exhausting the air out of the housing. The housing may also include an external rectangular duct.

EXHAUST HOOD METHODS, DEVICES, AND SYSTEMS - Exhaust hood methods, devices, and systems are disclosed herein that improve the performance of short-circuit hoods. Such improvements can be provided relatively inexpensively by utilizing existing features of the structure of short-circuit hoods. The resulting enhancement in performance may exceed that of a regular exhaust hood while avoiding the pitfalls associated with make-up air injection into the exhaust hood recess. The components of the short-circuit system that inject make-up and/or conditioned air into the exhaust hood recess can be converted into a combination of horizontal and vertical jets at a lower edge of the exhaust hood. A retrofit jet generator can be installed into the short-circuit system outlets. A series of openings in the jet generator can generate the combination of horizontal and vertical jets at a lower edge of the exhaust hood when air from the make-up air or conditioned air source is supplied thereto.

Kitchen Furniture - The invention relates to a piece of kitchen furniture having a useful surface area and at least one functional element arranged above the useful surface area. The functional element is arranged on a support member, wherein the support member comprises a pole attached to the piece of kitchen furniture and an arm adjoining the pole. The invention further relates to a piece of kitchen furniture having a useful surface area and at least one functional element arranged above the useful surface area, wherein the functional element is arranged on a support member, wherein the support member has a stem arranged on the piece of furniture within the useful surface area, the upper end of which extends above the useful surface area.

02-25-2016

20130233295

RANGE HOOD APPLIANCE WITH COMBINATION RECIRCULATION AND EXTERIOR VENTING OPTIONS - A range hood is provided that allows the user to select between venting to the exterior of a kitchen space versus recirculating air that is drawn over e.g., a cook top. Features are provided whereby the user can readily switch between such options for gas flow. A filter can also be provided whereby the user can readily select between different filter media depending upon the mode of gas flow selected.

09-12-2013

20130133639

GREASE FILTER - A grease filter capable of reducing a pressure loss generated while air passes through the grease filter, and cooking apparatus are provided. The grease filter includes an inflow portion configured for oil particles to be introduced therethrough, and a channel provided to discharge air current and oil particles, which are introduced through the inflow portion, to an outside, wherein the channel includes an upper channel disposed in parallel while spaced apart in a predetermined distance to form the inflow portion, and a lower channel comprising a direction changing portion provided to change a direction of the air current and the oil particles introduced through the inflow portion, and a guide portion having a predetermined angle to guide the oil particles and the air current having been changed in direction by the direction changing portion.

05-30-2013

20160054006

CONTROL OF EXHAUST SYSTEMS - Exhaust capture and containment are enhanced by means of automatic or manual side skirts, a sensitive breach detector based on interference effects, a combination of vertical and horizontal edge jets, and/or corner jets that are directed to the center diagonally from corners. Associated control functions are described.

02-25-2016

20120125316

VENTILATION SYSTEM FOR A RANGE HOOD WITH EXHAUST AND RECIRCULATION OPTIONS - A ventilation system for a range hood of a kitchen area is provided. More particularly, a kitchen ventilation system is provided that has both exhaust and recirculation options that are provided by internally contained features for directing the flow of air. The system can be installed as a modular unit as part of a new or existing range hood.

05-24-2012

20130167826

BLOWER FOR DOWNDRAFT COOKING APPLICATIONS AND ASSOCIATED METHOD OF USE - A blower for a downdraft cooktop that includes a blower housing, having a top portion and a bottom portion, which includes an inlet that can be fluidly coupled to a downdraft cooktop and an outlet for removing air from the blower housing, a fan located between the input and the outlet of the blower housing, a motor having a rotor with a shaft, having a top portion and a bottom portion, and a stator, wherein the bottom portion of the rotor is operatively attached to the fan, a rotatable member operative attached to the top portion of the rotor, and a motor housing enclosing the motor, having a top portion, a bottom portion, at least one inlet opening and at least one outlet opening, wherein air for cooling the motor is drawn through the motor housing without utilizing the air located within the blower housing.

07-04-2013

20140034040

DOWNDRAFT SYSTEM - Some embodiments of the invention provide a downdraft assembly capable of ventilating a cooktop including housing with a frame, a fluid box, and a movement assembly with a belt-lift. In some embodiments, the movement assembly can include a vertically moveable chimney. Some embodiments include a chimney with an upper and lower horizontal member and dual fluid inlets. In some embodiments, a first control panel can be coupled to the housing to activate at least one function of the downdraft assembly while remaining substantially stationary as the chimney moves. Some embodiments include a second control panel coupled chimney. Some embodiments include a visor and at least one illumination source configured and arranged to at least partially illuminate the cooktop. In some embodiments, the visor can articulate to control illumination or the flow of a cooking effluent into at least one of the dual inlets.

02-06-2014

20120152226

HEAT SINK FOR A COOKING APPLIANCE - A heat sink for LEDs or other electronic elements in a kitchen appliance is provided. The chassis or other heat conducting components of the appliance are used as a heat sink to conduct away heat. The LEDs or other electronic features may be connected directly to the heat sink or may be connected by e.g., a bracket.

AIR-CIRCULATING MODULE AND FUME EXTRACTION DEVICE - An air-circulator includes an housing with an air inlet, an air outlet opening, an odor filter, and an insertion opening for inserting the odor filter. The odor filter is assigned to the air outlet opening.

01-21-2010

20140331988

Range Hood System and Method for Moving Air - A method of moving air comprises providing a recreational vehicle having a range for cooking, and providing a range hood and attaching the range hood to the recreational vehicle above the range, the range hood comprising a body, an outlet for exhausting air, a motor capable of a plurality of speeds, a fan connected to the motor, and a fan switch connected to the motor to control a speed of the motor.

11-13-2014

20150101588

GREASE FILTER, MANUFACTURING METHOD THEREOF AND COOKING DEVICE HAVING THE SAME - A grease filter, which includes a first channel having an inlet portion through which oil particles flow in, and a first guide unit configured to guide the oil particles flowing in through the inlet portion, and a second channel having an outlet portion through which the oil particles and air current flowing in through the inlet portion is discharged into the outside, and at least one second guide unit configured to guide the oil particles and air current to be discharged through the outlet portion. Here, the first channel and the second channel are detachably provided. The grease filter can be easily repaired and maintained, and collection efficiency can be improved due to such a configuration.

DAMPER SUITABLE FOR LIQUID AEROSOL-LADEN FLOW STREAMS - A flow control device has a duct section with a plurality of damper blocking elements, each having a major plane. The damper blocking elements are pivotably connected to the duct section and movable in a range that is limited to ensure that, when the duct section is mounted in a preferred orientation, the damper blocking element major planes always form an angle of at least 45 degrees from the horizontal throughout the range. The range is such that the plurality of damper blocking elements can selectively close and open the duct. The blocking elements can completely close the duct, for example, to block natural convection.

10-22-2015

20150316273

APPARATUS FOR CHANNELLING COOKING FUMES - An apparatus for channelling cooking fumes arising from cooking taking place on a stovetop in a designated area, the apparatus comprising a suction duct having at least one inlet configured for intake of air containing the cooking fumes, the suction duct configured to channel the air containing the cooking fumes away from the designated area; and a supply duct having at least one outlet configured for outflow of air over at least a portion of the stovetop such that the cooking fumes are at least partially directed by the air towards the at least one inlet of the suction duct; the apparatus being hoodless.

11-05-2015

20140150771

COOKTOP VENTILATION AND COOLING SYSTEM - A domestic cooking appliance is provided. The appliance includes an oven having an oven exhaust duct located above the oven, and an exhaust fan for moving cooling air though the oven exhaust duct and out of an exhaust opening located at an upper rear location of the oven; and a cooktop located above the oven, the cooktop having a main unit configured to be positioned above the oven and having a container support for supporting cooking containers to be heated by the cooktop; and a ventilation system for routing cooling air through the main unit, the ventilation system having a cooling air inlet located at a bottom front of the main unit and above the oven, and a cooktop duct that channels the cooling air from the cooling air inlet to the container support or channels the cooling air from the container support to the oven air exhaust duct.

06-05-2014

20140116414

CUSTOM RANGE HOOD SYSTEM AND METHOD - Embodiments of the invention provide a range hood system including a housing, a ventilation system including an inlet and a fan, an illumination source, and a user interface coupled with a control system. In some embodiments, a fan speed can be varied, and in some further embodiments, the range hood system can include a filter change indicator and fan delay-off feature. In some other embodiments, the illumination intensity can be varied to provide variable illumination intensity to the range top surface. Some embodiments can include a clock, a timer coupled to an audible alarm, and a fan delay-off time coupled to a user interface. In some other embodiments, a heat sensor can be coupled to a component of a range hood system, and a heat sentry mode can display a status on a user interface, and can operate a fan if the temperature exceeds a preset limit.

05-01-2014

20140034039

AIR EXCHANGE SYSTEM WITH MULTIPLE AIR BLOWERS OR FANS TO PRODUCE A CYCLONE-LIKE AIR FLOW - An air exchange system places the air pumps or fans outside of the main air outflow pathway through a device, such as a range hood. By using this configuration, the system is made safe, easy to maintain with less noise and may even increase the efficiency of the air pump by not subjecting it to debris, particles or turbulence in the air flow, also flexible to add more pumps with significant increase the size of the air exchange system. Air pumps can be operably connected to push air into two or more air reservoirs. Each air reservoir has a narrow air outlet slit along with a Coanda design. When air comes out of the narrow air outlet, it has high speed and generates a negative pressure due to the Bernoulli effect. Such negative pressure will bring more air around into the air flow system, thus causing a desired air exchange.

02-06-2014

20160069580

VENTILATION SYSTEM FOR A ROOM - The present invention relates to a ventilation system for a room which comprises a hood for domestic use located in said room, a wall fan located in said room, a plurality of transducers configured to detect a respective plurality of characteristic parameters of the gases in said room; processing and control means in signal communication with said plurality of transducers and in signal communication with said first control means, processing and control means electrically connected with said plurality of transducers and in signal communication with said first control means, said processing and control means comprising firmware configured to process said detected characteristic parameters and to transmit a first control signal to control said hood for domestic use. The characterizing feature is that said hood for domestic use is in signal communication with said wall fan via a first transmitter module, located in said hood, and configured to transmit a second signal, said wall fan comprising a first receiver module configured to receive said second signal; said second radio frequency signal being generated by said hood according to said first signal to instruct said second control means to turn on said wall fan and keep it in this state for a first predetermined ON-time when one or more of said characteristic parameters detected by said plurality of sensors exceed respective predetermined threshold values.

CONTROL OF EXHAUST SYSTEMS - Exhaust capture and containment are enhanced by means of automatic or manual side skirts, a sensitive breach detector based on interference effects, a combination of vertical and horizontal edge jets, and/or corner jets that are directed to the center diagonally from corners. Associated control functions are described.

Air Collecting Device And Exhaust Air Box, In Particular Usable In Said Device - The invention relates to an air holding device comprising a channel system raised from a suction opening disposed at a height of a workstation generating dirty air or vapours and leading to at least one outlet opening. An exhausting fan is placed between a prefilter and at least one odour filter. The channel system is embodied in the form of an exhaust air box disposed downstream of the exhaust fan. The lateral surface of the exhaust air box comprises an air inlet which is connected to the downstream side of the exhausting fan. The other lateral surfaces are selectively provided with air outlet openings covered respectively with an odour filter having an adjustable air resistance. Said odour filter preferably consists of a foam material coated with active carbon and the air resistance thereof is selectable according the thickness and/or porosity of the foam material.

08-28-2008

20090211564

Smoke Exhaust With An Air Curtain Fan - A smoke exhaust has a casing, a suction fan and an air curtain fan. The casing has an air chamber, an air duct and a smoke collecting eaves. The air chamber has a lower inlet and an upper inlet. The smoke collecting eaves is mounted on the casing. The suction fan is mounted in the casing. The air curtain fan is mounted on the eaves and is capable generating a downward air curtain. The air curtain prevents the smoke from spreading out of the smoke exhaust.

08-27-2009

20090199844

EXHAUST HOOD WITH AIR CURTAIN - An exhaust hood captures and contains a thermal plume with a minimum of exhaust air by defining a short-throw planar jet around a protected perimeter. Corner interference is mitigated by various mechanisms including having at least one of adjacent planar jets run only partly along a respective edge such that said first and second curtain jets do not meet at said corner; having a direction of the planar jets proximate corners where they meet being intermediate between respective directions of the jets along respective main portions of the perimeter; or having a direction of the jets of one of the adjacent edges be horizontal while the other is vertical.

08-13-2009

20080202492

SMOKELESS COOKER - A smokeless cooker includes a table located indoors, with a cabinet, which may include a plurality of individual boxes stacked and assembled together, below the table. A gas-discharge flow path leads from the cabinet to the outdoors. The cabinet includes an inner box with an open upper portion in an upper opening section of an outer box. An installed cooking means is located inside the inner box. A suction flow path is formed outside the inner box, with a suction hole in the inner wall of the suction flow path above a heating surface of the installed cooking means. The gas-discharge flow path includes a fat/oil filtering section, an absorption deodorizing section, a HEPA filter and a fan. A duct leading to the outdoors is present at the downstream side of the HEPA filter.

08-28-2008

20100275900

Exhaust air mist separator - A grease containment apparatus to remove grease and other contaminants from hot air exiting a kitchen area through a vent system which includes a vertical separator.

11-04-2010

20100258109

RETROFIT APPARATUS FOR A COOKING DEVICE - A retrofit apparatus for a preexisting cooking device comprises a hood that defines a liquid removal section, a motor disposed within the hood, and a motor gear rotatable by the motor to facilitate rotating a centrifugal liquid removal device. The motor gear may comprise a plurality of teeth configured to engage a motor gear coupling on a shaft of the centrifugal liquid removal device, and the motor gear may be configured to automatically engage the motor gear coupling to facilitate rotating the centrifugal liquid removal device. In other embodiments, a lifting mechanism in the preexisting cooking device is configured to move the centrifugal liquid removal device from a cooking section to the liquid removal section.

10-14-2010

20140311476

RANGE EXHAUST CLEANING SYSTEM AND METHOD - A cleaning system for a cooking range exhaust having a range hood, a backsplash, and an exhaust flue for exhausting cooking effluent is disclosed. The cleaning system can include a fluid delivery system constructed for partial placement within the cooking range exhaust. The fluid delivery system can include a hood spray conduit constructed for placement within the hood and comprising spray openings for directing a degreasing composition to the backsplash. The fluid delivery system can also include a flue spray conduit constructed for placement within or outside the exhaust flue and comprising at least one spray opening for directing the degreasing composition to an interior surface of the flue. The cleaning system can include a pump system constructed for conveying the degreasing composition from a degreasing composition source and through the fluid delivery system. A method of cleaning a cooking range exhaust and a self-cleaning exhaust system are also disclosed.

10-23-2014

20090272372

Kitchen Hood Assembly with a Combination Cleaning and Fire Suppression System - A kitchen hood assembly includes a combination hood cleaning and fire suppression system. The hood assembly includes a hood structure and a riser connected thereto. An exhaust blower forces an exhaust stream of air into the hood and through the riser. A combination hood cleaning and fire suppression system is incorporated into the hood structure. The combination hood cleaning and fire suppression system includes an elongated spray bar that is connected to a water source and includes a surfactant injector that injects a surfactant into the water being directed to the spray bar. In one mode of operation, the spray bar is effective to clean the hood assembly. In another mode of operation, when a fire is sensed in or in the vicinity of the hood, the same spray bar is utilized to inject an aqueous liquid into the hood to suppress the fire.

11-05-2009

20130074823

RANGE EXHAUST CLEANING SYSTEM AND METHOD - A cleaning system for a cooking range exhaust having a range hood, a backsplash, and an exhaust flue for exhausting cooking effluent is disclosed. The cleaning system can include a fluid delivery system constructed for partial placement within the cooking range exhaust. The fluid delivery system can include a hood spray conduit constructed for placement within the hood and comprising spray openings for directing a degreasing composition to the backsplash. The fluid delivery system can also include a flue spray conduit constructed for placement within or outside the exhaust flue and comprising at least one spray opening for directing the degreasing composition to an interior surface of the flue. The cleaning system can include a pump system constructed for conveying the degreasing composition from a degreasing composition source and through the fluid delivery system. A method of cleaning a cooking range exhaust and a self-cleaning exhaust system are also disclosed.

03-28-2013

20090013989

LINEAL SLOT VENTILATOR WITH INTERNAL CLEANING SYSTEM AND ADJUSTABLE BAFFLE - In an exemplary embodiment, this system is found within a kitchen hood, such as those found in restaurants, used to remove excess cooking heat and grease. Building fire safety and sanitation codes mandate routine hood maintenance to maintain fire safety, operator comfort and workplace sanitation. Conventional maintenance can be very messy, time consuming and quite expensive. In an exemplary embodiment, the hood is fabricated to incorporate an integral heat exchanger which further creates a trough housing a grease extraction device. The exchanger and trough are located in such a manner that collected heat and/or grease may be removed from the exhaust air stream and further fabricated to permit automatic and/or semi automatic cleaning of both devices and trough. This invention improves fire safety and sanitation, saves time and reduces maintenance costs. Cleaning is achieved using less energy and keeps the heat exchanger at peak efficiency to further enhance energy savings.

01-15-2009

20090194093

BAFFLE-TYPE GREASE FILTERS FOR KITCHEN VENTILATORS - A grease filter has upper and lower baffle assemblies that define tortuous paths for exhaust air flowing therethrough. The baffles in the upper assembly include a perforated metal strips and bent free edges to maximize grease extraction from the exhaust air. A hinge connects the upper and lower baffle assemblies and permits the assemblies to pivot from a closed position to an open position. In the open position, access is provided to all surfaces of the assemblies so that they can be efficiently cleaned.